The lacy crystals of the ____ bone are tapped to raise blood calcium when the supply from the day's diet runs short.
a. nerve tissue
b. red blood cells
c. trabecular bone
d. cortical bone
e. kidney tissue
Question 2
Which ethnic group has the lowest risk for osteoporosis?
a. Asians
b. Hispanics
c. Caucasians
d. Africans
e. There is no association between osteoporosis risk and ethnicity.
