Deoxygenated blood from the body returns to the
-:- right atrium
Blood that is ejected from the right ventricle
-:- flows into the pulmonary arteries
Which of the following blood vessels transports oxygenated blood?
-:- pulmonary veins
What is the function of the left atrium?
-:- It rece...
When an electrical impulse reaches the AV node, it is slowed for a brief period of time so
that:
✓ -:- Blood can pass from the atria to the ventricles
The ability of cardiac muscle cells to contract spontaneously without a stimulus from a
nerve source is called:
✓ -:- Automaticity
The electrical stimulus that originates in the heart's primary pacemaker is controlled by
impulses from the brain's
✓ -:- autonomic nervous system
Which of the following is NOT a function of the sympathetic nervous system
✓ -:- constriction of blood vessels in the muscles
In contrast to the sympathetic nervous system, the parasympathetic nervous system:
✓ -:- slows the heart and respiratory rates
2|Page | Grade A+| 2024/2025
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