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Name the functions of skeletal system
- support
- protection
- movement
- storage
- blood cell formation
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stores energy found in bones
yellow marrow
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fills internal cavities of bones, blood cells through hematopoesis
red marrow
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blood cell formation (red, white, platelets)
hematopoesis
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longer than wider mostly compact bones
long bones
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cube shaped and contain mostly spongy bone
short bones
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thin, flattened, usuallly curved
flat bones
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two thin layers of compact bone sandwiching by a layer of spongy bone between them
flat bones
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called wormian bones-found between flat bones in the skull
sutures
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small, flat and develop inside tendons
sesamoid bones
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commonly located near joints of the knees, hands, and feet.
sesamoid bones
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carpals and tarsal are what type of bones
short bones
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parietal skull bones and other skull bones, ribs, sternum are examples of what type of bone
flat bone
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vertebrae, bones of the pelvis, some skull bones are examples of
irregular bones
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patella is an example of
sesamoid bone
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also called the shaft makes up the bone length
diaphysis
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medullary cavity is lined with
endosteum, a thin layer of squamous epithelium
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covers the diaphysis and the bones
periosteum
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two types of cellss in periosteum
osteoblasts and osteoclasts
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this type of cell raise calcium levels
osteoclast
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form/grows bone through a process called osteogenesis
osteoblasts
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in adults bones-thin line of bony tissue spanning the epighysis
epiphyseal line
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flat plate of hyaline cartilage seen in young, growing bone (18-21)
epiphyseal plate
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mature bone cells
osteocytes
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bone tissue is made of calcium salts
matrix
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layers of the matrix is called
lamellae
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the matrix contains
calcium, phosphate crystals
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tiny, narrow passageways through bone matrix which form a branching network of nutrients, wastes, and gases
canaliculi
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Haversian is also called
osteon
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run perpendicular to the surface and connect together central canals.
perforating (Volkmann's) canal
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central canal+the lamellae (matrix rings)=
Osteon (Haversian system)
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bony bars designed to take stress and for strength
tabeculae
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bone formation is called
osteogenesis
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blood cell formation is called
hematopoesis
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a central (Haversial) canal contains
blood vessels and nerves
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the space in an osteon where osteocytes are located
lacunae
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the nonliving/inorganic portion of the compact bone
matrix of calcium salts
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connective tissue found covering the epiphysis
articular cartilage
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the pull of ____can reshape a bone
gravity
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marrow cavity contains this type of storage connective tissue
adipose tissue
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ends of a long bone
epiphysis
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the location where blood cell formation occurs
marrow cavity
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the canal where a blood vessel travels through the bone
central or Haversial canal
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canls connecting central canal
perforating canal
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