Control of the diameter of the respiratory passages depends upon
A) sympathetic stimulation only.
B) parasympathetic stimulation only.
C) somatomotor stimulation only.
D) both parasympathetic and sympathetic levels of stimulation.
E) sensory receptors sensitive to changes in lung ventilation.
Answer: D
You might also like to view...
Neurons that convey information from the brain and spinal cord to muscles and glands are called ____ neurons
a. efferent b. afferent c. interneurons d. cranial
The right coronary artery typically:
A) supplies both the AV and SA nodes. B) supplies most of the interventricular septum. C) has a circumflex branch. D) passes to the left side of the pulmonary trunk after arising from the right aortic sinus. E) supplies the fibrous pericardium.
Azotemia is defined as:
A) electrolyte disturbances in the blood. B) an accumulation of uric acid in the blood. C) increased nitrogenous wastes in the blood. D) excess potassium excretion by the kidneys.
The background rate of sympathetic and parasympathetic activity is called ___________.
A. "fight-or-flight" activity B. visceral motor activity C. autonomic reflex arc activity D. visceral tone E. autonomic tone