Muscular force can be adjusted to match different loads by
A) recruiting more motor units
B) involving more muscle fibers in the contraction
C) recruiting larger motor units
D) varying the frequency of action potentials in motor neurons
E) All of the answers are correct
E) All of the answers are correct
You might also like to view...
Immune privilege refers to
a. the existence of an immune system in a limited number of taxa. b. the inhibition throughout life of immune cells that are specific for the body's own tissues. c. the ability of the eyes to escape immune attack. d. two of these.
Secondary spermatocytes undergo the second meiotic division to become ____
a. spermatogonia b. spermatids c. spermatozoa d. primary spermatocytes
Which of the following is correctly associated with the medulla oblongata?
A. It is the most superior portion of the brainstem. B. It contains enlargements called cerebral peduncles. C. It gives rise to conscious thoughts. D. It relays sensory information. E. It contains nuclei for regulation of heart rate and blood vessel diameter.
The serous membrane of the lungs is called the ________
A) pericardium B) pleura C) peritoneum D) periosteum