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21 Cards in this Set
- Front
- Back
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Bone functions
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support, protection, movement, staorage, blood cell fomation.
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Projections and depressions
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projections or processes- growth
Depressions- indentations |
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Crest
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Narrow ridge of bone, usually prominent
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Condyle
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Rounded projections
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Ramus
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armlike bar of bone
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Meatus
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canal like passageway
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Foramen
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Round or oval opening thru bone
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Diaphysis
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shaft of bone
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Epiphyses
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ends of long bones
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Articular cartilage
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covers epiphyses (external surface
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Endosteum
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the thin membrane lining the cavities of spongy bone. It contains both osteoblasts (bone forming) and osteoclasts (bone destroying)
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Volkmann's canals
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The communicating pathway from the outside of the bone to it's interior and central canals
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Osteocytes
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mature bone cells, found in tiny cavities within the matrix called lacunae.
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PTH
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determines if and when Calcium needs to be taken from the bone and entered into the blood stream
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Calcitonin
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secreted when blood levels of calcium rise, acts to deposit more calcium at bone matrix while depleting it from the blood. When blood calcium levles are norm, no calcitonin released
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Axial skeleton
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forms longitudinal axis of the body, skull, vert column and bony thorax
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Appendicular skeleton
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Ccomposed of 126 bones of the limbs, and pectorial and pelvic girdles
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Cranium # of bones
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8 large flat bones except for 2 paired (parietal and temporal) they are all single bones
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zygomatic process
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bridge of nose, joins cheeks
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styloid process
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extory auditory canal
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Vertebral column
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7 cervical
12 thorasic 5 Lumbar +5fused sacrum +4 fused coccyx |
