HN210 Study Guide - Final Guide: Ear Canal, Jugular Foramen, Zygomatic Arch
Document Summary
Suture = point where 2 bones come together & fuse. Mandible = only articulating (moveable) bone in the skull. Mental foramen: exit point for nerve supplying facial expression. Zygomaticofacial foramen: exit point for nerve supplying facial expression. Optic canal: nerves come to eye & innervate muscles that surround the eye. Inferior orbital fissure: nerves come through to innervate muscles around the eyes. Superior orbital fissure: nerves come through to innervate muscles around the eyes. Pterion: weakest part of skull; 4 bones come together; prone to injury. Temporal fossa: where temporalis muscle attaches on temporal bone. Zygomatic arch: junction btwn zygomatic bone & temporal bone, housing temporalis muscle. Condylar process: articuates w/ tail end of zygomatic arch. Saggital suture: runs down midline; coronal to lamboid suture; separates parietal bones. Jugular foramen: exit/entrance point for nerves & vessels. External acoustic meatus: nerves that go to ears.
