ANTHROP 2E03 Lecture Notes - Lecture 8: Hamstring, Toe, Gluteal Muscles
9 Apr 2018
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Walking on hind legs: knuckle walking (on first knuckle not fist) Savanna hypothesis: climate change ment more savanna land, results in more changed, hypothesis made sense. Skeletal changes: forman magnus (moved anteriorly, sigmoid spine (s-shaped spine, broad short pelvis. Inset femoral head (deep femoral socket: knock knees (femoral angle, knee extension. Inline hallux (big toe in line with the rest of the foot and toes: longitudinal arch in the foot. Muscular changes: gluteal muscles strengthened from standing/walking upright, hamstring muscles strengthened from walking on 2 legs. Limb proportion: obligate bipedalism (we are built to walk bipedally shorter arms and longer legs) Not the actual size of the brain itself but what portions of the brain are larger.
