Bone Tissue Flashcards
bone
made up of several different tissues that work together to carry out a function
functions of the skeletal tissue
support
protection of soft tissues
movement
stores and releases minerals
homeopoesis
storage of triglycerides
homeopoesis
process that creates red blood cells
takes place in the red marrow
storage of triglycerides
takes place in the yellow marrow
long bone
length is greater than its width
short bone
length and width are equal
flat bones examples
rib
sternum
irregular bones
funky shape
irregular bones examples
pelvis
vertebrae
sesamoid bone
develop in a ligament of tendon as a result of friction
sesamoid bone example
kneecap
diaphysis
shaft
epiphysis
2 ends of the bone
metaphysis
between the shaft and ends of the bone
hyaline cartilage
articular cartilage
function of hyaline cartilage
forms a joint
covers epiphysis
reduces friction
periosteum
dense irregular CT covering of a long bone
function of periosteum
rich blood supply
point of attachment for ligaments and bones
osteogenic cell
stem cell that becomes specialized to form bone
medullary cavity
marrow cavity
yellow marrow found here
histology of bone tissue
study of bone tissues
matrix
25% collagen
25% water
50% minerals
collagen
provides tensile strength
where are ostoegenic cells located
periosteum and endosteum
osteoblasts
bone building cells
immature bone cell
what is the function of osteoblasts
secrete collagen
initiate ossification by depositing calcium in the collagen
osteocytes
mature bone cells
what is the function of osteocytes
maintains bone in their area
osteoclast
bone destroying cell
what is the function of an osteoclast
breaks down collagen to release calcium in the blood stream by releasing enzymes
breaks down bone so new bone can be built
