ANAT 101 Chapter Notes - Chapter 7: External Occipital Protuberance, Superior Orbital Fissure, Ear Canal
16 Mar 2016
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Document Summary
The axial skeleton helps in homeostasis by protecing vital organs (brain, spinal chord, heart, lungs, etc). Also important in support & calcium storage and release. Orthopedics = medical science of prevenion/correcion of musculoskeletal system disorders. Adult skeleton: 206 bones (most paired on right and let side of body) Infants have more than 206 bones because some bones fuse later in life o. Ex: hip bones and some bones (sacrum and coccyx) of vertebral column. The two main adult skeleton is made of axial skeleton and appendicular skeleton. Axial: verical line from head through between the feet. Cribriform plate: hyoid bone, auditory ossicles - technically neither axial or appendicular but is paired for convenience, vertebral column, thorax. Appendicular: upper & lower limbs (extremiies and appendages) and bones forming girdles (connect limbs to axial skeleton) Basically all bones can be classiied in 5 types based on shape: Lots of protecion and allow for muscle atachment.
