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Jul 21, 2018 · Homo erectus is defined by its distin.

Question 15 3 pts What was the first hominin to migrate beyond Africa? Homo habilis Australopithecus Homo erectus Homo neanderthalensis Question 14 3 pts Compared to earlier hominins, which of the following did Homo erectus have? larger teeth a bigger sagittal keel U a smaller brain a larger brain Question 13 3 pts What is a central theme of human evolution? decreasing body size increasing ...sagittal keel; palpebral and pre-occipital glabellar furrows obscure; posterior border furrow con uent with posterior margin of occipital ring; glabella, conical to trapezoidal, strongly convex,Sagittal keel: A slight ridge of bone found along the midline sagittal suture of the cranium, which is typically found on Homo erectus skulls. Ardipithecus kadabba. An early pre-australopithecine species from the late Miocene to the early Pliocene; shows evidence of a perihoning complex, a primitive trait intermediate between apes and modern ...Each functional system of the body evolves independent of the others, but each system has an effect on the others. Example of mosaic evolution. Neurological, dental and locomotor evolved at different rates. Sagittal crest. Starts on frontal bone, goes back to occipital; muscle attachment area, huge because it drives a huge mandible. Sagittal keel.Feb 2, 2023 · The sagittal keel can be found on the top of the skull of some animals, typically those belonging to the order Cetacea (whales, dolphins, and porpoises). It is a ridge along the midline of the skull, formed by the fusion of the two parietal bones. Expert Answer. Sagittal crest The sagittal crest that runs from the top of the skull acts as an anchor for large chewing muscle The presence of this ridge of b …. Australopithecus robustus had adapted which feature below for eating a tough diet? small temporal fossa sagittal crest nuchal torus sagittal keel.Homo habilis, extinct species of human, the most ancient member of the human genus. It inhabited parts of sub-Saharan Africa from roughly 2.4 to 1.5 million years ago. Many of its features appear to be intermediate between the relatively primitive Australopithecus and the more-advanced Homo species.The Sagittal keel (torus) is a thickening of bone on part or all of the midline of the frontal bone, or parietal bones where they meet along the sagittal suture, or on both bones. Sagittal keels differ from sagittal crests, which are found in some earlier hominins (notably the genus Paranthropus) and in a range of other mammals.Verified answer. economics. ATech has fixed costs of $7 million and profits of$4 million. Its competitor, ZTech, is roughly the same size and this year earned the same profits, $4 million. But it operates with fixed costs of$5 million and lower variable costs. a. Shorter keel, about 3/4 of the length higher activity carbon feet, this leads to a poor toe-off with quicker transition to the sound foot. The keel is in the dynamic SACH cannot be customized. Heel height is fixed, single bolt attachment failure, quickly worn out by active users. ... They can be with certain range of liberty in only sagittal ...Question: Partial 1.13/1.5 pts Question 3 Homo habilis Australopithecus africanus Homo erectus Homo sapiens Homo erectus Distinctive Feature: Sagittal Keel Homo erectus is characterized by a sagittal keel along the midline of the top of the skull -- it is a sharp bump along the sagittal suture where the parietal bones meet. Examine the visual and fill in the blanks in-Sagittal keel, a small ridge from front to back along the sagittal suture, reflects bone buttressing in a very robust skull, rather than a specific function. Homo erectus Brain Size-Cranial capacities 700 cm3 to 1250 cm3-Brain size closely linked with overall body sizesagittal keel *this does not serve as an attachment for the temporalis muscle like the sagittal crest of earlier hominins did. narrowing of the cranium behind the browridges and orbits. postorbital constriction *this is best observed from above. a trait of H. erectus. wrinkled enamelThe human remains from the Late Pleistocene Mousterian sites in modern day Israel raised the issue of variation for the first time in the history of paleoanthropology.Location of maximum skull breadth Sagittal keel? (thickening- not crest-along top of skull) Shape of occipital and nuchal region (nuchal torus/thick ridge?) Amount of postorbital constriction Supraorbital ridge size Amount of prognathism Shape of dental arcade Size of incisors compared to molars Mandibular symphysis form (receding, vertical ...ISBN: 9781305073951. Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr. Publisher: Cengage Learning. SEE MORE TEXTBOOKS. Solution for A nuchal torus, large supraorbital torus, thick cranial bones, a sagittal keel, and shovel shaped incisors are associated with which of the….Tangential and Sagittal Errors In our discussion of lens aberrations, we will often refer to the tangential and sagittal errors from the desired power. The tangential plane of the lens represents the meridian of the lens that radiates out from the optical center; these planes are analogous to the spokes of a bicycle wheel.Sagittal keel on the bregma-lambda arch. 16. 0 absent. 1 present. Parasagittal hollowing on both sides of the parietal suture. 17. 0 absent. 1 present. Pre ...- No sagittal keel. Homo habilis - No sagittal keel or crest - Larger cranial capacity (than A. africanus) - Less prognathism (than A. africanus) - Smaller cheek teeth (than A. africanus) Homo erectus - Most robust - Most subnasal prognathism - Largest cheek & anterior teeth - Large brow ridgeG.g. gorilla: crest A. africanus: keel P. boisei: crest H. erectus: keel H. s. sapiens: Round a. Given what we know about the Sagittal crest, how might a species without a Sagittal crest (has either a Sagittal keel or nothing) be different than a species that has a Sagittal crest? They probably have a bigger brain but have less protection. 6.Sagittal keel: A thickened area along the top of the skull. FOR FURTHER EXPLORATION. Boaz, Noel Thomas, and Russell L. Ciochon. 2004. Dragon Bone Hill: An Ice-Age Saga of Homo erectus. New York: Oxford University Press.In the occipital bone, the lower division of the cruciate eminence is prominent, and is named the internal occipital crest; it bifurcates near the foramen magnum and gives attachment to the falx cerebelli; in the attached margin of this falx is the occipital sinus, which is sometimes duplicated.. In the upper part of the internal occipital crest, a small depression is …(~1.8 Ma) - large body size - human-like teeth - obligate biped, good runner - human-like body proportions - first hominin outside of Africa - stone tool use (Acheulian) - considered first "real" member of Homo - "sagittal keel" - resembles a seam across top of skull - wedged back of skull-Sagittal keel, a small ridge from front to back along the sagittal suture, reflects bone buttressing in a very robust skull, rather than a specific function Homo erectus Brain Size -Cranial capacities 700 cm3 to 1250 cm3 Bahauddin Zakarai University, Sahiwal. BUSINESS 423. Exercise 7. Label key features of the skull of Homo erectus. Label andBriefly Describe the key features of the skull and how it differs from earlier hominins using the following terms: mandible maxilla nasal area brow ridges foramen magnum zygomatic arch occipital torus sagittal keel chin ...-sagittal crest, wide face-massive teeth with thick enamel. Paranthropus boisei location and dates. Kenya, 2.3-2.2 mya. Homo habilis brain capacity. 600cc. ... -sagittal keel-robust supraorbital tori-no true chin-nuchal torus-maximal width of cranium towards the bottom of the skull. Homo erectus location and datesQUESTION 29 What does the Assimilation model of the origin of modern humans state? We have assimilated to such an extent that H. sapiens is an evolutionary dead end Gene flow is not important in understanding where humans originated Modern humans evolved in Africa and interbred with other humans as they spread to other continents Modern humans ...* Sagittal Keel. * Low vault. * Occipital torus. * No chin. * Long, low skull. * Large supraorbital ridges. * Rounded dental arcade. * Max skull breadth medium on skull. * Low degree of postorbital constriction. * Low/long cranial shape. * Med/large cranial size relative to face. * Low degree of prognathism. * Angular occipital. * Vertical ...Cranium had a sagittal crest (muscle attachment point), broad zygomatic arches, forward projecting cheek bones, and a slightly larger brain volume than A. aforensis. Was a megadont, had broad, flat molars, hyper thick enamel, specialized for hard foods or repetitive chewing (nuts or grasses).Answered: A projection of bone in the back of the… | bartleby. Science Biology A projection of bone in the back of the cranium that serves as a neck muscle attachment is called a _____ _____. Group of answer choices supraorbital torus sagittal crest sagittal keel foramen magnum nuchal torus. A projection of bone in the back of the cranium ...This study sought to investigate these differences in sagittal and frontal planes, and explain the differences using kinematics and kinetics. We hypothesized that single-leg and double-leg landing maneuvers involve different lower extremity energy dissipation strategies in both planes. Ten recreational athletes were recruited and instructed to ...Homo erectus Dmanisi 2700 1.8 mya in Georgia Oblong football head Occipital torus ( muscle attachment) Supraorbital tori Sagittal keel Lessening of prognathism Mode 2: Acheulean "Perking man" 300-600 kya in China Acheulean, Hans axe.A) occipital torus B) sagittal keel C) postorbital constriction D) foramen magnum Answer: A Question Title: TB_07_37_ Homo erectus _Apply_7.5 Learning Objective: 7.5 Explain the evolution of Homo erectus.Upon in-depth review of these cases, we found three of the patients to have a prominent sagittal keel with thinning of the overlying soft tissues which artificially shifted the highest point of the skull in our VNO measurements to the posterior parietal bone. One patient was found to have 10 mm of unfused mid-sagittal suture of unclear ...sagittal keel. A slight ridge of bone found along the midline sagittal suture of the cranium, which is typically found on H. erectus skulls. What are the main physical characteristics of Homo erectus compared to those of Homo habilis? a. Homo habilis vs. Homo erectus i.lived around 2.5 mya, found in 1999. similar to australopithecines in brain size, much larger teeth, sagittal crest to anchor large chewing muscles. Australopithecus sediba. dates from 2-2.2 mya, very gracile, and also has sagittal crest ... dates from 1.4 mya - 50 kya, has sagittal keel, supraorbital torus, receding forehead, thick cranial ...29 Apr 2019 ... The parietal bone lacks a sagittal keel, as do later but not earlier eAMPl. Its supramastoid crest ends at entomion, and hence there is no ...Sagittal keel. an inverted V-shaped ridge running along the top of the skull in Homo erectus. Occipital/Nuchal torus. pronounced ridge at the rear-most point on the occipital bone. Hominin Groups - Homo habilis - Increased cranial capacity - mesio-distal elongation of molarsThe presence of sagittal, frontal, and coronal keels, which are small crests that run along these suture lines, has been proposed to be evidence of significant thickening of the skull, specifically the cranial vault. CT scan analyses reveal this to not be the case.Question: Question 5 Another name for an occipital torus is: sagittal torus supraorbital torus nuchal torus postorbital torus No new data to sa Question 7 The classic H. erectus traits included all of the following EXCEPT: a sagittal keel an occipital torus a discontinuous supraorbital torus a long cranium .Homo sapiens Homo neanderthalensis I have a long, low cranium with a sagittal keel. I have a modernHomo fioresiensis stature. I am an obligate biped living in Asia around 1.0 mya. I make Acheulean stone tools. I have a low cranium and small teeth. I have a very small cranial capacity and a very small stature. l live on an island in Southeast ...The superior sagittal sinus is visible above lambda at the vertex of the division between the occipital lobes. Inferiorly, the vessel deviates somewhat to the right and is continuous with the right transverse sinus at the confluence, sweeping forward and downward to the right sigmoid sinus and then into the right jugular region ( figure 2 d ).ISBN: 9781305073951. Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr. Publisher: Cengage Learning. SEE MORE TEXTBOOKS. Solution for A nuchal torus, large supraorbital torus, thick cranial bones, a sagittal keel, and shovel shaped incisors are associated with which of the….a sagittal keel. 3. According to Bergmann's rule, Group of answer choices. the colder the climate, the larger the body. there is no relationship between the body form and temperature. the colder the climate, the shorter the limbs. the warmer the climate, the larger the body. There are 3 steps to solve this one.They also did not exhibit the sagittal keel (see Homo erectus, Chapter 29) typical of the Asian form. However, the Koobi Fora specimen exhibits slight keeling (see Figure 28.4). Koobi Fora Homo ergaster. Postorbital constriction. Slight keeling Temporal line.Is it normal for humans to have a sagittal crest? - Quora. Something went wrong.Jul 7, 2022 · Paranthropus robustus is an example of a robust australopithecine; they had very large megadont cheek teeth with thick enamel and focused their chewing in the back of the jaw. Large zygomatic arches (cheek bones) allowed the passage of large chewing muscles to the jaw and gave P. robustus individuals their characteristically wide, dish-shaped face. Today, most scientists assign Kabwe to Homo heidelbergensis. Kabwe shows features similar to H. erectus such as a low braincase profile (the area towards the back of the skull), large brow ridges, a slight widening of the midface known as the sagittal keel, and a protrusion at the back of the skull named the occipital torus. Find step-by-step Anatomy and physiology solutions and your answer to the following textbook question: Give two features that are unique to *Homo sapiens sapiens*. a. the nuchal torus and the sagittal keel b. vertical forehead and mental eminence c. the supra-orbital torus and vertical frontal slope d. the sagittal keel and mental eminence.Sagittal Crest. A ridge running along the top of the cranium; usually representing increased bone area for the attachment of chewing muscles. Sagittal Keel. A raised area in the mid-cranium; found in H. erectus.They also did not exhibit the sagittal keel (see Homo erectus, Chapter 29) typical of the Asian form. However, the Koobi Fora specimen exhibits slight keeling (see Figure 28.4). Koobi Fora Homo ergaster. Postorbital constriction. Slight keeling Temporal line.Label the supraorbital torus and the sagittal keel. Which hominid group does this represent? This is a Homo erectus cranium. This is a Homo erectus cranium . 9. Examine the following photo. Does this cranium belong to Homo habilis or Homo erectus Name two features that helped you decide. ?How to pronounce sagittal. How to say sagittal. Listen to the audio pronunciation in the Cambridge English Dictionary. Learn more. Structure. The brow ridge is a nodule or crest of bone sThe features of the skull are very similar to thatParanthropus robustus is an example of a robust australo

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Figure 5.11 Homo erectus (left) has a sagittal .

Sagittal keel: A slight ridge of bone found along the midline sagittal suture of the cranium, which is typically found on Homo erectus skulls. Ardipithecus kadabba. An early pre-australopithecine species from the late Miocene to the early Pliocene; shows evidence of a perihoning complex, a primitive trait intermediate between apes and modern ...Frontal bone. Inner surface. (The squamous part is the upper two thirds.) The squamous part of the frontal bone is the superior (approximately two thirds) portion when viewed in standard anatomical orientation. There are two surfaces of the squamous part of the frontal bone: the external surface, and the internal surface.An apparent metopic eminence and sagittal keel on D2280 are probably pathological. The mandibular fossae of the temporal are mediolaterally and anteroposteriorly long and relatively deep. The entoarticular process in D2282 is projecting and formed by both temporal and sphenoidal contributions, as is the foramen spinosum. ...31 Mar 2018 ... The answer is D. Homo naledi seems most likely to be a member of the genus Homo; however, its small brain size is regarded as a primitive ...All of the above: Asian Homo erectus has a cranial capacity of 1400cc, Asian Homo erectus lacks a nuchal torus, African Homo ergaster lacks a sagittal keel Meat appears to have become important in hominins diets starting around __________ million years ago.The well-developed sagittal keel on the distal extremity of the metapodial is another character to enhance pendular movement of limb bones, and an adaptation for running. The development of the ...Nuchal torus, sagittal keel, thick cranial bone. Projecting occipital bone, often called occipital bun in Neanderthals; intermediate thickness of cranial bone. Small …sagittal keel. There is a discrete complex of large Wormian bones in the left lambdoidal suture, and a small accessory bone at lamda. The right parietal bone folds locally onto the lambdoidal suture, and the leftparietalbone shows a similar fold onto the complex of Wormian bones (Fig. 1).Homo erectus is defined by its distinctive cranial morphology, including a long, low vault and the presence of cranial suprastructures such as sagittal keeling, an angular torus, a bar-like or arching supraorbital torus, and a projecting occipital torus (Antón 2003, 2012). The widest part of the cranial vault is low and in combination with ...Sagittal crest of skull 'sagital sutures' line running lengthwise along midline of top of skull. Nuchal crest line that transects the sagittal crest along the occipital bone. tympanic bullae "egg-shaped" swellings on ventral surface of temporal bones that contain the middle ear structures.The Sagittal Keel (torus) is a thickening of bone on part or all of the midline of the frontal, or parietals where they meet along the sagittal suture, or on both bones. Sagittal keels occur in Homo ergaster, Homo erectus and occasionally Homo heidelbergensis, where they probably served as an armour against shock to the roof of the skull, and ... The skull shape and features are very much like other members of the genus Homo, including features such as a sagittal keel and large brow like Homo erectus and …The well-developed sagittal keel on the distal extremity of the metapodial is another character to enhance pendular movement of limb bones, and an adaptation for running. The development of the ...The skull of a male gorilla. The crest can be seen at the top of the skull. Katherine Balolia. He said if the sagittal crest relates to sexual selection in hominins too, then you may well see a ...The well-developed sagittal keel on the distal extremity of the metapodial is another character to enhance pendular movement of limb bones, and an adaptation for running. The development of the ...Valgus anglehuman femur angled inward, legs kept directly under body Shape of pelvisbroad/wide, shortstabilization of weight transmission Spinal curvatureS curvature, 2 distinct curves; allows for natural spring & curve, centers trunk above pelvisGene flow is the key to evolution, turning archaic H. sapiens into modern humans in various parts of the world. (Q008) What does the Assimilation model of the origin of modern humans state? Modern humans evolved in Africa and spread to Europe and Asia, where they interbred with Neandertals. (Q009) Why did early modern humans move into North and ...1 Jan 2010 ... 3D), a ventrolateral keel along the caudoventral margin of the ... (144) Pointedness of sagittal crest in lateral view: crest absent or ...18 Apr 2017 ... The presence of a sagittal crest increases the height of both the frontal and lateral profile of the head, and recent behavioural research ...1. Y-5 teeth (same as hominoid) 2. 2.1.2.3. DF (same as hominoid) 3. *post cranial* doesn't have ape locomotion (brachiate, knuckle walk)... but its an aboreal quadruped. 4. limb proportions of a macaque. aka more like a macaque. Adapoidea likely to be ancestral to modern day____. Omomyoids likely to be ancestral to modern day____. ISBN: 9781305073951. Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr. Publisher: Cengage Learning. SEE MORE TEXTBOOKS. Solution for A nuchal torus, large supraorbital torus, thick cranial bones, a sagittal keel, and shovel shaped incisors are associated with which of the….How to pronounce sagittal. How to say sagittal. Listen to the audio pronunciation in the Cambridge English Dictionary. Learn more.The sagittal crest is a prominent ridge of bone that projects superiorly (upwards) from the cranial vault along its midline, most commonly seen in adult male gorillas and orangutans. Sagittal crests are rare in adult male chimpanzees and female gorillas, and are unknown in female chimpanzees, female orangutans, and humans and bonobos of both ... Sagittal crests (i.e. ectocranial crests that occur at, or close to, the midline), if they appear at all in living hominoids, are more likely to occur in male than female …Pithecanthropus Erectus. "upright walking ape-man". - later known as homo erectus. Homo Erectus. early species of Homo, descended from H. habilis; first hominin species to move out of Africa to Asia and Europe. Sagittal Keel. slight ridge bone found along the mid-line sagittal suture of the cranium, which is typically found on H. erectus skulls.Nearly all the men in my family are bald, and noQuestion: am XC Help Center Incorrect Quest

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Homo erectus skull Sangiran 17 (1 to 1.6 million years).. The Homo erectus skull Sangiran 17 was discovered in 1969 by Mr. Towikromo in Java, Indonesia, and first described in 1971 by S. Sartono as Pithecanthropus erectus (Pithecanthropus 8). In the book From Lucy to Language, Johanson and Edgar write, "Once it was reconstructed, Sangiran 17 constituted the best-preserved hominid cranium from ...ergaster, the Asian species is unique in a number of ways. Asian forms exhibit a thickening along the sagittal suture, termed a sagittal keel. The keel gives ...Gracile Aus., East Africa, Most well know australopithecine, Dikika child, Lucy, brain size = 430 cc, parabolic tooth row, true biped, ~3.5 feet tall, Laetoli footprintssagittal keel. A thickening of bone on part or all of the midline of the frontal bone, or parietal bones where they meet along the sagittal suture, or on both bones. sagittal crest. A ridge of bone that runs down the middle of the cranium like a short Mohawk. This serves as the attachment for the large temporal muscles, indicating strong chewing.The sagittal keel runs along the sagittal suture, at the top of the skull along the midline. A sagittal keel can be found in H. erectus skulls from Asia, Africa, and Europe. It is a feature that is unique to Homo erectus.Neanderthal, (Homo neanderthalensis, Homo sapiens neanderthalensis), also spelled Neandertal, member of a group of archaic humans who emerged at least 200,000 years ago during the Pleistocene Epoch (about 2.6 million to 11,700 years ago) and were replaced or assimilated by early modern human populations (Homo sapiens) between …Sagittal keel. H. erectus crania often have flattened areas on either side of the midline, forming an angle along the top of the skull. This can be on the frontal bone, on the parietals, or both.Study with Quizlet and memorize flashcards containing terms like _____ is known as the "Father of American Anthropology." Franz Boas Margaret Mead Emil Haury Charles Darwin, In their analysis of the biomechanics of human locomotion, Dennis Bramble and Daniel Lieberman show that human beings are very well adapted for tree climbing walking long-distance running trucking, The angle between the ...- Sagittal keel (a lump rather than a crest) with unknown function - More sloped sides of skull - Used Oldowan tools mostly, but a few Acheulean tools have been found in eastern Asia, and stone tools are absent from the entire region above the latitude line where bamboo grows.Sagittal Keel. The Sagittal Keel (torus) is a thickening of bone on part or all of the midline of the frontal, or parietals where they meet along the sagittal suture, or on both bones.Sagittal keels occur in "Homo ergaster", "Homo erectus" and occasionally "Homo heidelbergensis", where they probably served as an armour against shock to the roof of …Sagittal Keel. The Sagittal Keel (torus) is a thickening of bone on part or all of the midline of the frontal, or parietals where they meet along the sagittal suture, or on both bones.Sagittal keels occur in "Homo ergaster", "Homo erectus" and occasionally "Homo heidelbergensis", where they probably served as an armour against shock to the roof of …Examine the following photo. Label the supraorbital torus and the sagittal keel. Which hominin group does this represent? The supraorbital torus and the sagittal keel represent the homo erectus hominin group. 9. Examine the following photo. Does this cranium belong to H. habilis or H. erectus? Name two features that helped you decide.Peking Man also features a sagittal keel running across the midline, highest when it intersects the coronal suture halfway across, and recedes around the obelion (near the base of the parietal bones at the level of the parietal foramina). All skulls feature an equally developed keel (proportionally), including subadult and presumed-female ...noun. : an elevated bony ridge along the sagittal suture of many mammalian skulls including those of some extinct hominids.Name the cranial feature found in some robust australopithecines that would be found along the sagittal suture and is also where the chewing muscles would attach: ... C. presence of a sagittal keel. D. presence of an occipital bun. Question #48. It may be argued that the primary means of adaptation for a species like the cheetah is speed. ...Asian forms exhibit a thickening along the sagittal suture, termed a sagittal keel. The keel gives the skull a pentagonal shape in cross-section. It is unknown whether the keel served a function. Homo erectus by Keenan Taylor. Their incisors were shoveled, an adaptation that increases the stress resistance of teeth, especially when using them ... The Gongwangling skull presents all the characteristics described for H. erectus: low and very long cranium, with very thick bones that protected a brain of some 780 cubic centimeters; steeply inclined frontal, with pronounced superciliary arches that form a sort of twin visor above the eyes; flattened parietals which rise at the top to produce ...Study with Quizlet and memorize flashcards containing terms like Homo erectus, sagittal keel, cranial capacity and more.ISBN: 9781305073951. Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr. Publisher: Cengage Learning. SEE MORE TEXTBOOKS. Solution for A nuchal torus, large supraorbital torus, thick cranial bones, a sagittal keel, and shovel shaped incisors are associated with which of the….Upon in-depth review of these cases, we found three of the patients to have a prominent sagittal keel with thinning of the overlying soft tissues which artificially shifted the highest point of the skull in our VNO measurements to the posterior parietal bone. One patient was found to have 10 mm of unfused mid-sagittal suture of unclear ...Sagittal Crest. A ridge running along the top of the cranium; usually representing increased bone area for the attachment of chewing muscles. Sagittal Keel. A raised area in the mid-cranium; found in H. erectus.1. Describe whether or not each species has a sagittal crest, sagittal keel, or nothing. 2. Indicate where each hominin species was geographically found. 3. Identify the. Using the images below (A. Homo floresiensis, B. Homo heidelbergensis, C. Homo Neanderthalensis, D. Modern Human) and your lab manual, compare the differences between the ...a sagittal keel, shoveled incisors, wrinkled molar enamel. There is good evidence that Homo erectus evolved directly into anamtomically modern humans in Asia. True.figure 2). A strong sagital keel* is present along the midline for anchoring the muscles of mastication. This feature is more than double the size seen in the less mature CGM 40237 (see figure 3). While these muscles will certainly grow with age, they may also signal the beginning of a new diet in the years following the Flood. 40237 may have livedmales had a bony ridge (a sagittal crest) on top of their skull for the attachment of enormous jaw muscles. In this species, the crest was very short and located toward the rear of the skull. a small hyoid bone (which helps anchor the tongue and voice box) found in a juvenile specimen suggests A. afarensis had a chimp-like voice boxThe presence of sagittal, frontal, and coronal keels, which are small crests that run along these suture lines, has been proposed to be evidence of significant thickening of the skull, specifically the cranial vault. CT scan analyses reveal this to not be the case.From this protuberance the upper division of the cruciform eminence runs to the superior angle of the bone, and on one side of it (generally the right) is a deep groove, the sagittal sulcus, which lodges the hinder part of the superior sagittal sinus. To the margins of this sulcus the falx cerebri is attached. parietal bone. …the midline to form a sagittal crest. A