Which is false regarding bone remodeling?
A. It can occur in response to stress on a bone.
B. It occurs only at articular surfaces.
C. It occurs at both the endosteal and periosteal surfaces of the bone.
D. It occurs throughout life.
E. It assists in the maintenance of calcium and phosphate levels in the body.
Answer: B
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Smooth muscle is characterized by all of the following except ________.
A) it appears to lack troponin B) there are more thick filaments than thin filaments C) there are no sarcomeres D) there are noncontractile intermediate filaments that attach to dense bodies within the cell
A pole vaulter keeps track of his position in mid-air through
A) pain receptors. B) baroreceptors. C) lamellated corpuscles. D) proprioceptors.
Signs of aging at the cellular level are (Select all that apply) A) graying hair, waning strength, and wrinkles.B) unrepaired DNA and abnormal proteins.C) impaired cell division and the ability to break down and recycle worn cell parts.D) a fatty liver and clogged blood vessels.
What will be an ideal response?
The ischemic phase of the uterine cycle is brought on by vascular spasms, which in turn are a response to what?
A. Ovulation B. Menstruation C. Rising LH level D. Falling progesterone level E. Rising progesterone level