Anatomy Ch 5
Terms
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- What are the 5 functions of bones?
- support, protection, movement, storage, blood cell formation,
- demse, smooth, homogeneous
- compact osseous tissue
- small needlelike peces and lots of open space (lightweight and durable)
- spongy osseous tissues
- longer than they are wide, shaft with ends; mostly made of compact tissue
- Long bones
- cube shaped; made of spongy tissue
- Short bones
- thin, flat, and curved; 2 layers of compact sandwiching spongy bone
- Flat bones
- out of the normal; ex: vertebrae, hip bones
- Irregular bones
-
shaft that makes up a bone's length
made of _____ - diaphysis; compact bone
- shaft is covered by a protective tissue called:
- periosteum
- fibers hold covering of shaft
- sharpey's fibers; performating fibers
-
ends of the shaft of the long bone
made of ___ -
epiphyses
compact bone enlosing spongy bone - epiphyses is covered by
- articular cartilage
- storage area for adipose tissue
- medullary cavity
- forms blood cells
- red bone marrow
- projections, depressions
- bone markings
- mature bone cells
- osteocytes
- cavities that hold the osteocytes
- lacunae
- concentric circles around cavities
- lamellae
- "bone unit"=
- osteon
- location of blood vessels and nerve cells in a osteon
- central canal
- tiny canals
- canaliculi
- makes bones strong
- calcium
- adds extra strength and flexibility
- collagen fibers