ch.14 - the autonomic nervous system - a&p

Which of the following target organs/systems is affected by the sympathetic nervous system but is NOT affected by the parasympathetic nervous system?

Cellular metabolism

Unlike the sympathetic division, the parasympathetic division synapses with the adrenal medulla.

false

The circular structures shown within pathways B and C represent which of the following?

ganglia

Which target organ is NOT affected by the parasympathetic division of the autonomic nervous system (ANS)?

Adrenal medulla

Which of the following statements is true of the group of fibers indicated by the letter D?

D indicates fibers that bypass collateral ganglia and terminate within the adrenal gland.

Why would smooth muscle associated with lung bronchioles dilate while smooth muscle associated with arterial walls constricts when stimulated by norepinephrine neurotransmitter?

Different receptor types

Which description is NOT consistent with the sympathetic division?

Most innervation from the vagus nerve

Nasal decongestants phenylephrine and pseudoephedrine act to shrink dilated blood vessels in the nasal passages to relieve congestion. They are called sympathomimetics because they act similar to sympathetic neurotransmitter norepinephrine. Which of the following would be an undesirable side effect associated with their use?

Nervousness

Which of the following is a way in which the somatic and autonomic nervous systems are similar?

None of the listen responses is correct

Which of the following best demonstrates an example of cooperation of the parasympathetic and sympathetic nervous systems?

Parasympathetic stimulation causes vasodilation of blood vessels in the penis, leading to erection; sympathetic stimulation then causes ejaculation.

Which of these activities is most likely driven by parasympathetic innervation?

Resting and digesting

The adrenal medulla secretes epinephrine during sympathetic stimulation. Which of the following statements describes why epinephrine would increase the sympathetic response?

The same receptors that respond to norepinephrine also respond to epinephrine, increasing the action of both.

Which of the following is NOT associated with the parasympathetic division of the autonomic nervous system (ANS)?

emergency action

Where are ganglia of the parasympathetic division located?

in or near effector organs

Sympathetic division stimulation causes ________.

increased blood glucose, decreased GI peristalsis, and increased heart rate and blood pressure

Which organ receives major input from the sympathetic, but not parasympathetic, division?

skin

The synapse in pathway B has several possible locations. Which of the following is NOT a possible location?

the spinal cord

Outflow of the sympathetic division occurs from which regions of the CNS?

thoracic and lumbar

Which set of details correctly identifies a series of events in a sympathetic pathway?

thoracolumbar origin, short preganglionic fiber, ACh release at ganglion, long postganglionic fiber, NE release at effector

Most blood vessels are innervated by the sympathetic division alone.

true

Which of the following is an effect of norepinephrine binding to beta 2 adrenergic receptors?

vasodilation