Which bodily component constantly renews bone?
a. Osteoblasts
b. Stem cells
c. Free circulating calcium ions
d. Combination of phosphorus and vitamin D
Question 2
The industrial nurse should teach all middle-aged employees to receive a tetanus booster how often?
a. Every 2 years
b. Every 4 years
c. Every 7 years
d. Every 10 years