NURS140 Lecture Notes - Lecture 3: Ankle, Brainstem, Foramen Magnum
30 Nov 2016
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Document Summary
Bones of the axial skeleton: the skull & associated bones (29) Skull (28: cranium (8, surrounds + protects the brain (fluid filled chamber) Occipital bone inferior surface contains large circular opening (foramen magnum) which connects cranial cavit with spinal cavity enclosed by the vertebral column. Forms part of the base of the skull. Parietal bone (2) form major part of superior + lateral surfaces of the cranium. Frontal bone: made up of forehead, roof of orbits and bony recesses that support eyes. Temporal bone (2: contribute to lateral + inferior walls of cranium and zygomatic arches of chekk. Mastoid process: provides an attachment site for muscles that rotate or extend head. Cranial bones are joined by sutures (immovable joints) The cranial fossae (remember, fossa means shallow depression): Temporal lobes, diencephalon, and anterior portion of the brain stem (mid brain) Posterior brain stem (pons and medulla: face (14)
