More on Humans vs Apes

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More on Humans vs Apes

Continues talking about distinctive features that distinguish humans from apes

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University of Missouri
Anthro 2050 - Introduction to Biological Anthropology With Laboratory
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Anthro2050 1st Edition Lecture 24 Outline of Last Lecture I. Sites and Geology Continued II. Humans and Apes Outline of Current Lecture II. Humans and Apes Cont Current Lecture Humans and Apes Cont: -Chins: Apes and early humans had no chins, it started appearing closer to modern humans. Human chins have a thicker enamel than apes without chins. -most changes in body below cranium are due to bipedalism -major shift in centre of gravity for balance -vertebral column curvature made so the spine better supports un upright body -thorax shape: apes- funnel shaped, narrow at the top then spread out at the bottom. bipedal hominids- barrel shape, narrow at top and bottom to give extra support to organs. -pelvis: apes-more narrow and set to the back. with bipedalism, the pelvis widens and is more set to the side to allow for two legged walking - valgus angle: angle between the femur and the proximal tibia. This angle brings the knees in closer to the center of gravity, allowing for easier walking without falling over. In quadruped apes this angle does not exist, as it is unnecessary, which is why apes walk in a swaying motion when they try to walk on two legs. This angle forms in humans only after they learn to walk, which is why babies just learning to walk also walk in that swaying motion. -big toe: apes have an off-set, fully opposable big toe, while human big toes are close to the other toes and are not opposable. this is because apes use the feet like hands and need the toe These notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.

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