Ions are ________.
A. electrically neutral
B. formed by the gain or loss of protons from the nucleus
C. electrically charged
D. nonpolar atoms
E. not soluble in water
Answer: C
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Reciprocal innervation
A. stimulates antagonistic muscles. B. results in reduced resistance to the reflex. C. reinforces the withdrawal reflex. D. inhibits the stretch reflex. E. is associated with the Golgi tendon reflex.
During inspiration:
a. the diaphragm contracts and moves up into the thoracic cavity b. the chest cavity expands c. the pressure in the thoracic cavity increases d. all of the above
Which of the following does NOT cause vasodilation?
A) Increased carbon dioxide B) Increased nitrogen C) Increased hydrogen D) Increased nitric oxide
What are the two main types of fatigue?
a. skeletal and cardiac b. skeletal and smooth c. muscle and cerebral d. muscle and psychological e. muscle and central