Blood is supplied to the myocardium by
A) the coronary sinus.
B) contact with blood in the pumping chambers.
C) the coronary arteries.
D) arteries that branch from the pulmonary arteries.
E) arteries that branch off the subclavian arteries.
C
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The inferior colliculi are auditory reflex centers of the midbrain.
Answer the following statement true (T) or false (F)
The sympathetic division of the ANS includes which of the following?
A) paired collateral ganglia anterior to the spinal column B) three segmentally arranged sympathetic chains C) two suprarenal medullae D) All of the answers are correct. E) None of the answers are correct.
Single-unit smooth muscle and cardiac muscle are both self-excitable
Indicate whether the statement is true or false
When placed in solution, an inorganic substance dissociates completely, forming hydrogen ions and anions. This substance would be a
A) strong base. B) weak base. C) strong acid. D) weak acid. E) salt.