ANP 1106 Chapter Notes - Chapter 4: Anterior Cranial Fossa, Lambdoid Suture, Supraorbital Foramen
30 Mar 2016
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Document Summary
The skeleton chapter 7 the skull. Skeleton/skeletal system = bones, carilages, joints, and ligaments; 20% of body mass. Carts isolated areas (nose, parts of ribs, joint) Axial skeleton = 80 bones; 3 regions: skull/vertebral column/thoracic cage: funcions: Appendicular skel let us interact/manipulate the enviro; atached to axial skel. Cranium = enclose/protect the brain; head/neck muscles atachment sites: funcions: Has caviies for special sense organs (sight/taste/small) Mostly lat bones; except mandible (connected by freely movable joints) Adult skull bones irmly united by sutures (= interlocking joints); saw-toothed: coronal, sagital, squamous, lambdoid = major cranial bone sutures. Facial bones form anterior aspect; cranium forms the rest of the skull. Cranium divided into a vault/base: cranial vault = superior/lateral/posterior aspect of skull + forehead, cranial base = inferior aspect. Bony ridges divide base into 3 fossae anterior/middle/posterior cranial fossae; brain sits snugly within the cranial vault: brain occupies the cranial cavity.
