If the ________ nerves to the heart are cut, the heart rate will ________.

A) sympathetic; decrease
B) sympathetic; increase
C) parasympathetic; decrease
D) parasympathetic; increase


Answer: D) parasympathetic; increase

Anatomy & Physiology

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One function of semen is to buffer the acidic secretions of the vagina.

Answer the following statement true (T) or false (F)

Anatomy & Physiology

When comparing action potentials to graded potentials, an/two important distinguishing characteristic/s is/are

A) graded potentials can undergo summation. B) action potentials can undergo summation and the rate of action potentials is limited by the refractory period. C) action potentials can undergo summation. D) graded potentials can undergo summation and the rate of action potentials is limited by the refractory period. E) that the rate of action potentials is limited by the refractory period.

Anatomy & Physiology

The gray matter of the brain houses motor neuron and interneuron cell bodies, dendrites, telodendria, and unmyelinated axons

Indicate whether this statement is true or false.

Anatomy & Physiology

Epinephrine and norepinephrine

a. have a generalized vasoconstrictor effect. b. promote vasodilation of blood vessels supply muscles. c. promote mobilization of stored carbohydrates. d. dilate respiratory airways. e. none of these.

Anatomy & Physiology