ANTH 011 Lecture Notes - Lecture 26: Foramen Magnum, Temporal Muscle, Mastication

• School: College of The Sequoias
• Department: Anthropology (ANTH)
• Course: ANTH 011
• Professor: Allen

Document Summary

Gorillas chew all the time big vegtarians eat tons of fiberous vegetation have. Big zygomatic arches starting on cheek bones and goes to the bottom of really big temporalis and massetor muscles the jaw. Gorillas have giant cheek bones so they can have larger mastication muscles. Gorillas also have a saggital crest because they have small brains but they need large temporalis muscles. Humans on the other hand have smaller temporalis and massetor muscles but larger brains. Fixed point, through which body weight is transmitted or balanced. When humans stand, the cog is situated directly in the midline. Foramen magnum is positioned directly underneath the skull in humans. This allows the cranium to balanced on the backbone much easier. Therefore it does not take much muscular effort to keep the head balanced since its already in the middle. In chimps the foramen magnum is positioned in the back of the skull.