Bone

Question 1

Bone matrix composition

Answer 1

collagen 1, water, proteoglycan, other non collagenous proteins, hydroxyapatite mineral

Question 2

woven bone

Answer 2

collagen fibers that make up in random orientation

present in fetal developement and repairment

Question 3

lamellar bone

Answer 3

sheets of bone made from lamallae

1 directional sheets every layer but different differections per layer for strength

Question 4

osteoblasts characteristics

Answer 4

respond/secrete high levels of growth factors and cytokine
high levels of alkaline phosphatase
bone forming
seen on cell surfaces whether active or inactive
high amounts of ER and golgi to modify synthesize export proteins for bone formation

Question 5

osteocyte functions

Answer 5

mechanosensors, secrete alot of cytokines for osteoblasts and osteoclasts modulation, detect microdamage