Muscle atrophy that progresses with aging is caused by reduction in
A. muscle strength, but not motor neuron activity.
B. connective tissues.
C. motor neuron activity, but not muscle strength.
D. the sizes of muscle fibers.
Answer: D
You might also like to view...
Blood vessels that make their way from the renal hilum to the renal cortex must travel through extensions of the cortex called renal
A. pyramids. B. columns. C. sinuses. D. calyces. E. trabeculae.
In the figure showing an anterior view of the veins, which number indicates the cephalic vein?
A. 1 B. 2 C. 6 D. 8 E. 4
The amount of air moved into and out of the lung during normal, quiet breathing is called:
a. vital capacity b. residual volume c. tidal volume d. expiratory reserve volume
Which of the following is NOT true of the diaphragm?
A. It is innervated by the phrenic nerves. B. It is considered to be the prime mover for inspiration. C. When it contracts, it compresses the thorax and decreases its volume. D. Its action is to flatten during inspiration. E. All of these are true of the diaphragm.