e) medullary cavity
5) which of the following happens if body temperature rises above normal?
a) circulation in the skin decreases.
b) sweat gland activity decreases.
c) evaporative cooling stops.
d) blood flow to the skin increases.
e) the activity of melanocytes increases.
6) muscle proteins are destroyed after 17 days and then replaced. this is an example of
a) metabolic turnover.
b) surveillance.
c) surface tension.
d) disease.
e) specificity.
7) how is vitamin d (vitamin d3) related to calcium homeostasis in bone?
a) vitamin d provides a framework for calcium in the matrix.
b) vitamin d is regulated by osteoclast activity.
c) vitamin d is produced by osteoblasts during endochondral ossification.
d) vitamin d is involved in calcium absorption by the digestive tract so calcium is
available for ossification and remodeling.
e) vitamin d replaces calcium in the skeleton.
8) the cerebellum relies on information from
a) the eyes.
b) the inner ear as movements are underway.
c) proprioceptive sensations.
d) motor commands from upper motor neurons.
e) all of the answers are correct.