ANP 1106 Study Guide - Trigeminal Nerve, Zygomatic Bone, Superior Orbital Fissure

• School: University of Ottawa
• Department: Anatomy and Physiology
• Course: ANP 1106
• Professor: All

Document Summary

206 bones in human skeleton - make up about 20% of body weight (10kg) Skull: cranial bone, facial bones (most complex; 2 sets of bones (22): cranial bones and facial bones ) Most skull bones are flat bones; (except mandible) United by sutures and enclose the brain in the cranial cavity. Cranial vault (calvaria) superior, lateral & posterior aspects of the skull + forehead, covers it up. Provide sites of attachment for head and neck muscles. Has 85 openings for nerves, blood vessels & spinal cord and posterior cranial fossae. 8 bones : parietal (2), temporal (2), frontal, occipital, sphenoid, ethmoid. Curvature allows them to be self-bracing; can be strong while being quite thin. Dome-shaped bone; also forms the roof of the orbits & anterior cranial fossa. Articulates with paired parietal bones posteriorly (meets) Note, supraorbital margin supraorbital foramen (opening) for passage of nerves and blood vessels, and glabella area.