rank in order the prevalence of fractures due to osteoporosis of: hip, vertebral, and wrist what is the predominant mineral in bone? bone contains __% of the body's calcium and __% of its phosphorus function of osteoblasts function of osteoclasts the entire skeleton is being constantly remodeled: replaced entirely ever _____ years

1. rank in order the prevalence of fractures due to osteoporosis of: hip, vertebral, and wrist

vertebral > wrist > hip

2. what is the predominant mineral in bone?

hydroxyapatite

3. bone contains __% of the body's calcium and __% of its phosphorus

99% calcium
85% phosphorus

4. function of osteoblasts

build bone

5. function of osteoclasts

breaks down bone

6. the entire skeleton is being constantly remodeled: replaced entirely ever _____ years.

7-10 years

7. what is a basic multicellular unit (BMU)?

teams of osteoclasts and osteoblasts

8. what are the 4 steps in bone remodeling?

resorption, reversal, formation, quiescence (inactive)

9. what controls osteoclasts and osteoblasts in the process of bone remodeling?

a complex array and timing of cytokines and hormones

10. why do women experience a rapid decline in bone mass generation after menopause?

drop in estrogen levels