Session 4 SKELETAL SYSTEM & MUSCULAR SYSTEM Flashcards
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long bones
humorous or arm bone
longer in the dimension it has
short bones
carpel or wrist bone
tarsels or foot bones
tibia
inferior part of the lower leg
long bone of the lower leg
epiphysis
end of a long bone looks like spongy bone
inside that red bone marrow
flat bones
frontal and skull bones
irregular bones
vertebrae and spinal bones
sesamoid bones
round bones
patella (knee cap)
structure of long bones
epiphysis, diaphysis, medullary cavity, articular cartilage, periosteum, endosperm
diaphysis
long hollow shaft
hollow tube made of hard, compact bone
yellow bone marrow
does not contribute to homateopoisis
(formation of cells)
medullary cavity
hollow area inside the diaphysis of a bone, contains yellow bone marrow, an inactive
articular cartilage
thin layer of hyaline cartilage covering each epiphysis, functions like a thin, smooth rubber cushion would if it were place over the ends of bones where they form a joint.
periosteum
strong membrane of desne fibrous tissue covering a long bone everywhere except at joint surfaces, where it is covered by articular cartilage
endosteum
thin membrane that lines the medullary cavity
cancellous bone
spongy bone has holes inside the hole red bone marrow cavities inside that red bone marrow.
trabuculae inside cancellous bone bony structures
compact bone
dense and hard outer part
have structural bones called osteon (calcified matrix) centre in each osteon central canal that has living tissue need a blood supply blood supply cut off bone dies
epiphyseal line
longitudinal line
becomes solid when done growing
radius and ulna are the distal portion of the arm
radius = thumb
ulna = pinky finger
scaphoid bone
wrist bone/carpel bone
membrane covering inside cavity of the shaft of the long bone
endosteum
phalanges
finger bones/long bones
metacarpal
hand bones/long bones
osteoblasts
builds bones, grow and heal
collect calcium from blood and give it to bone
osteocytes
maintain strength and health of bone matrix
