Heart muscle is influenced by the _____ nervous system and hormones such as epinephrine

A) autonomic
B) parasympathetic
C) somatic
D) sympathetic


Answer: A

Health & Biomechanics

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aortic insufficiency : Condition in which the semilunar valve fails to close completely during ventricular _____________, causing blood to return to the left ventricle, which makes the left ventricle work harder.

Fill in the missing word in the definition for the key term.

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Under normal circumstances, which of the following substances should be found in urine?

A) glucose B) blood C) albumin D) nitrogenous wastes

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