Mark the following statements as true or false. If a statement is false, correct it to make a true statement.


d. Sympathetic tone controls the resting rate of the heart.

Which of the following actions would you expect when sympathetic neurons release norepinephrine onto β1 receptors?

a. Decreased sweat production

b. Constriction of blood vessels serving the digestive, urinary, and integumentary systems

c. Adjustment of the shape of the lens

d. Increase in the rate and force of contraction of the heart.

Fill in the blanks: The sympathetic nervous system is also known as the ________ division because the cell bodies of its preganglionic neurons are located in the ________ .

Sympathetic preganglionic neurons synapse:

a. directly on target cells.

b. on skeletal muscle fibers.

c. on sympathetic chain or collateral ganglia.

d. on vagal ganglia.

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

b. Sympathetic stimulation increases sweat secretion.

Using 20 or fewer words, define each of the following terms in your own words.

a. Sympathetic nervous system

You are running a race to the top of a mountain. Explain all the changes your sympathetic nervous system will initiate to maintain homeostasis as you run the race.

Mr. Chevalier has been diagnosed with Horner syndrome, which is caused by dysfunction of the sympathetic neurons in the superior cervical ganglion that innervate structures of the head, face, and neck. What symptoms is Mr. Chevalier likely to face due to his disease? Explain.