CAS AN 102 Study Guide - Final Guide: Gluteus Maximus Muscle, Ischium, Quadrupedalism

• School: Boston University
• Department: Anthropology
• Course: CAS AN 102
• Professor: All

Document Summary

Humans have longer legs, shorter toes, big toe in line with other toes, arched foot. A quadruped is never standing on fewer than two feet, often three. A striding piped spends almost half its time standing on one foot. Gluteus maximus and hamstrings help move thign backward during walking. When you lift one foot, the deep gluteal muscles on the other side contract. Pelvis: 2 os coxae (illium, ischium, pubis), 1 sacrum. Angle helps to position the lower leg directly under the body. Humans have distinct spinal curves to keep weight centered above pelvis.