ANAPHYSIO Flashcards
(20 cards)
it is a system in the body that is considered as the framework of the body
skeletal system
how many bones are there in the body?
206
largest bone in the body
femur
smallest bone in the body
occites
stapes
2 parts of the bone
matrix
calcium
what composes matrix of the bone?
collagen and calcium salts
what is a protein in the bone that is responsible for tensile strength and resilience?
collagen
a part of the bone that is responsible for hardness and compressional strength
calcium
what is the main mineral calcium in the bone?
phosphate crystals
these bone cells came from osteogenic stem cells
osteocytes
osteoblast
osteoclast
in what stem cell does the osteocytes, osteoblast, and osteoclast came from?
osteogenic stem cell
these are the mature bone cells that maintain the matrix of the bone
osteocytes
these bone cells are responsible in bone formation that is very active during childhood
osteoblast
these bone cells are responsible for bone resorption that is very active during elderly
osteoclast
what drugs can increase osteoclast activity?
steroids
why does menopause can affect bones?
estrogen increases osteoblast activity which is lacking during menopausal stage
what are the hormones that regulates calcium in the blood?
PTH
calcitonin
main regulator of calcium in the blood
PTH
why does increased osteoclast activity can weaken the bone?
there is more calcium in the blood than in the bone
2 types of calcium in the blood
ionized
unionized
