Biology · Human Physiology
Consider the following statements about the regulation of cardiac activity: 1. Parasympathetic signals decrease the speed of conduction of action potential. 2. Sympathetic signals decrease the rate of heartbeat. 3. Adrenal medullary hormones increase cardiac output.
- 1All are correct
- 22 and 3 are correct
- 31 and 3 are correct✓
- 41 and 2 are correct
Correct answer
1 and 3 are correct
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