Chapter 14 A&P

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Which of the following is NOT an autonomic nervous system (ANS) effector?

skeletal muscle

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

emergency action

Which autonomic neurons release norepinephrine as a neurotransmitter?

sympathetic postganglionic neurons

Conduction through the autonomic efferent chain is faster than conduction in the somatic motor system.

False

Which division of the nervous system has short preganglionic neurons?

sympathetic

Once a preganglionic axon reaches a trunk ganglion, one of three things can happen to the axon. Which of the following is NOT one of these three things?

The axon can course back into the spinal cord to synapse with preganglionic neurons in a different spinal segment.

The sympathetic division is also called the "thoracolumbar division" of the autonomic nervous system.

true

Symptoms of autonomic neuropathy could include any EXCEPT which of the following?

abnormal stretch reflex responses

Which of the following is responsible for the overall integration of the autonomic nervous system (ANS)?

hypothalamus

What is the effect of norepinephrine on the heart?

increase in heart rate

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

adrenal medulla

Which types of drugs are used to help relieve depression?

Drugs that prolong the activity of norepinephrine on the postsynaptic membrane help to relieve depression.

Which of the following is responsible for the overall integration of the autonomic nervous system (ANS)?

hypothalamus

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

Which of the following is NOT an antagonistic effect of the sympathetic nervous system?

increased cognitive functioning

Blood "shunting" is a dangerous situation in which the vital organs shut down, causing the body to go into circulatory shock.

False

In which of the following structures would you expect to see afferent ganglia?

glossopharyngeal nerve

Which of the following is NOT an autonomic nervous system (ANS) function?

Reflex of skeletal muscle

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

emergency action

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

Resting and digesting

Which plexus does NOT receive innervation from the vagus nerve?

Inferior hypogastric plexus

Which of the following is NOT a designation for sympathetic ganglia?

terminal ganglia

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

Which description is NOT consistent with the sympathetic division?

Most innervation from the vagus nerve

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

false

The sympathetic division innervates targets with nerves that all originate from the thoracolumbar region.

true

What differentiates an autonomic reflex from a somatic reflex?

A two-neuron motor pathway

The major anatomic difference in autonomic reflex arcs is that there are two sensory afferents.

false

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

vasodilation

Which receptor paring below is correct?

Nicotinic; acetylchline

You are designing a drug to reduce heart rate. Which receptor would you target?

Muscarinic receptors

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 your action; sympathetic stimulation then causes ejaculation

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

Which of the following is characteristic of the parasympathetic division?

stimulates secretory activity

Which of the following is responsible for the overall integration of the autonomic nervous system (ANS)?

Hypothalamus

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

thoracic and lumbar

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

skin

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