Cardiac output can be increased by:
 
I: Neural signals through sympathetic nerves
II: Neural signals through parasympathetic nerves
III: Adrenal medullary hormones
 
1. Only I and II
2. Only I and III
3. Only II and III
4. I, II and III
Subtopic:  Regulation of Cardiac Activity |
 83%
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The activities of the human heart can be regulated through the autonomic nervous system by a special neural center located in:

1. Medulla oblongata 2. Hypothalamus
3. Mid brain 4. Cerebrum
Subtopic:  Regulation of Cardiac Activity |
 80%

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