Explain the effect of the parasympathetic nervous system on cardiac muscle cells

What will be an ideal response?


Preganglionic parasympathetic neurons travel to the heart via the vagus nerves (CN X) and stimulate the postganglionic parasympathetic neurons to reduce both the heart rate and the force of contraction. These actions antagonize the sympathetic nervous system and lower blood pressure.

Anatomy & Physiology

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Which of the nitrogenous bases is part of RNA but not DNA?

A) Guanine B) Uracil C) Thymine D) Cytosine

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A ruptured appendix is life threatening because ________

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Which group of antiulcer medications blocks receptors on parietal cells in the stomach, thereby reducing gastric acid secretion?

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Anatomy & Physiology