L12-1

Question 1

in women, what are the top three causes of death

Answer 1

1) cardiovascular disease
2) hip fracture
3) breast cancer

Question 2

”” fractures are a problem for the military

Answer 2

stress

Question 3

describe the composition of the bone

Answer 3

1) mineral

2) organic, mainly collagen

Question 4

why does she think the bone is contradictory - list out reasons and describe each one

Answer 4

1) stiffness - resist deformation
2) flexibility - absorb energy
3) light - efficient motion
4) bulk - resist fracture

Question 5

osteocytes make up % of all bone cells

Answer 5

90-95%

Question 6

read: osteocytes are highly connected throughout the bone matrix

Answer 6

-

Question 7

function of
osteoblast
osteoclast

Answer 7

osteoblast build bone

osteoclast resorb/break down bone

Question 8

what comes after resorption

Answer 8

formation

Question 9

define osteocyte

Answer 9

is an osteoblast that is embedded in the matrix it has secreted

Question 10

name the three bone cell types

Answer 10

1) osteoclast
2) osteocyte
3) osteoblast