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Heart Regulation #3
Intrinsic and Extrinsic Regulation

Your Answer

Correct Answer

1. Baroreceptors and sympathetic stimulation are both components of "intrinsic" regulation of the heart. True
False
2. When blood pressure increases, baroreceptors are stimulated and action potentials are sent by sensory nerves to the cardio regulatory center. True
False
3. Increased sympathetic stimulation of the heart will cause an increase in Cardiac Output (CO). True
False
4. Parasympathetic stimulation of the adrenal gland will cause the release of epinephrine. True
False
5. Increased parasympathetic stimulation, along with reduced sympathetic stimulation, of the heart will result in reduced cardiac output. True
False
6. Increased quantities of epinephrine in the blood will result in decreased cardiac output. True
False
7. Generally - blood pressure will increase when cardiac output is increased. True
False
8. During a severe loss of blood (hemorrhage) - the loss in blood pressure will cause increased sympathetic stimulation of the heart and increased heart rate will result. True
False
9. Sympathetic nerves innervate the adrenal gland. True
False
10. Starlings law is an example of "extrinsic regulation of the heart." True
False

 
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