ANAT 1010 Lecture Notes - Lecture 8: Anterior Cranial Fossa, Cranial Cavity, Hyoid Bone
6 Feb 2020
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Document Summary
Lecture 8 - the skeletal system: axial skeleton. Skull, hyoid, vertebrae, ribs, sternum, and ear ossicles. Protect the brain and house ear ossicles. Provide muscle attachment for jaw, neck, and facial muscles. Protect delicate sense organs of smell, vision, and taste int eh nasal, orbital, and mouth cavities. Support entrances to digestive and respiratory systems. Forms the roof of orbits and oor of the anterior cranial fossa. Form the sides and roof of the cranial cavity. Located on the lateral wall of the cranial cavity. Zygomatic process: forms part of the zygomatic arch. Mastoid process: can be felt behind the auricle. Mandibular fossa: articulates with the mandible at the temporomandibular joint (tmj) Forms posterior part and most of the base of the cranium. Located in inferior part of the occipital bone. Medulla oblongata (inferior part of the brain) connect with the spinal cord within foramen magnum. Occipital condyles: articulate with the rst cervical vertebra (atlas) to form the atlanto-occipital joints.
