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Skeletal System AP1

The skull, the vertebral column and thoracic cage, pectoral girdle and upper limbs, and pelvic girdle and lower limbs skeletal system
Function: support, movement, mineral storage, blood cell formation skeletal system
The skeletal system is divided into what 2 sections? Axial and appendicular skeleton
Consists of skull, vertebrae, sternum, ribs, sacrum, and hyoid axial skeleton
Consists of pectoral girdle, upper limbs, pelvic girdle, and lower limbs appendicular skeleton
80 bones make up this skeletal section axial skeleton
126 bones make up this skeletal section appendicular skeleton
Total number of bone in adult human body 206
2 types of bones compact and spongy
Smooth and homogenous compact
A lot of open space & trabeculae which are bars of bones spongy bone
Have huge blood supply and are mostly made up of compact bone long bone
Usually a long shaft with two heads long bone
Examples: humerus, femor, phalanges long bone
Examples: wrists and ankles short bones
Mostly spongy bone short bone
Compact bone that sandwiches spongy bone (cube shaped) flat bone
Examples: skull, scapula, ribs flat bones
Examples: some facial bones (sphenoid), vertebrae irregular
4 types of bone Short, long, irregular, and flat
2 special types of bones sesamoid and wormian/sutural bones
Special types of short bone formed at tendons sesamoid
Tiny bones between cranium bones wormian/sutural
Vary in terms of number; location is different for each individual special types of bone
Depressions and openings fissure, fontanels, foramen, fossa, meatus, sinus
Processes that form joints condyle, facet, head
Attachment processes crest, epicondyle, linea, process, trochanter, tubercle, tuberosity
Created by: Lisa Hall



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