Describe the effects of the autonomic system on the heart

Reference no: EM133619876

Assignment:

Pick one of the listed questions and post an initial response to the discussion thread. Later in the week, you'll be expected to also post two interactive responses to a peer or to your professor.

1. When comparing skeletal muscle to cardiac muscle, why does skeletal muscle fatigue easily (try to flex a light dumbbell for a few minutes straight)? Why doesn't cardiac muscle fatigue easily (heart beats every second of your life)?

2. Explain the functional significance of the difference in thickness of the ventricular walls (right and left ventricles).

3. Briefly describe the effects of the autonomic system on the heart. How does the SA node know how to respond correctly to the sympathetic and/or parasympathetic output? Please make sure all posts are detailed and substantive to receive full credit.

Reference no: EM133619876

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