Describe how mechanical stress impacts bone remodeling.
a. Mechanical stress influences the formation of cartilage only and does not effect bone matrix.
b. Increasing stress activates osteoblast activity and the formation of new matrix.
c. Increasing stress on a bone activates osteoclast activity and the breaking down of bone matrix.
Ans: b. Increasing stress activates osteoblast activity and the formation of new matrix.
You might also like to view...
The sympathetic postganglionic fibers that innervate the sweat glands secrete acetylcholine rather than norepinephrine
Indicate whether the statement is true or false
What hormones increase blood sodium levels?
A) glucocorticoids B) epinephrine and norepinephrine C) mineralocorticoids D) gonadocorticoids
Addison disease is characterized by
A. aldosterone deficiency and loss of extracellular sodium. B. aldosterone excess and loss of extracellular sodium. C. aldosterone excess and gain of extracellular sodium. D. aldosterone deficiency and gain of extracellular sodium.
Softening of the isthmus of the uterus (Hegar sign) is associated with:
A) pregnancy. B) uterine cancer. C) a prolapsed uterus. D) menopause. E) menstruation.