ANA Ch 14 HW & Quiz Questions

Which of the following releases the neurotransmitter norepinephrine? terminus of a somatic motor neuron terminus of a parasympathetic postganglionic neuron terminus of a sympathetic preganglionic neuron terminus of a sympathetic postganglionic neuron

Which of the following is a way in which the somatic and autonomic nervous systems are similar? Both systems share common effectors. Both systems share common efferent pathways. Both systems have ganglia in their motor pathways. Both systems elicit the same target organ responses to their neurotransmitters. None of the listed responses is correct.

Where are ganglia of the parasympathetic division located? near major arteries just as they exit the aorta within the medullas of endocrine glands in or near effector organs in chains on either side the spinal column

Outflow of the sympathetic division occurs from which regions of the CNS? cranial and sacral cranial only cervical and lumbar thoracic and lumbar

Which organ receives major input from the sympathetic, but not parasympathetic, division? salivary glands heart bladder skin

Which plexus does NOT receive innervation from the vagus nerve? inferior hypogastric plexus cardiac plexuses abdominal aortic plexus pulmonary plexuses

Which description is NOT consistent with the sympathetic division? long postganglionic fibers most innervation from the vagus nerve thoracolumbar ganglia close to the spinal cord

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 axon can synapse with a ganglionic neuron in the same trunk ganglion. The axon can ascend or descend the sympathetic trunk to synapse in another trunk ganglion. The axon can pass through the trunk ganglion and emerge from the sympathetic trunk without synapsing.

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

Which receptor paring below is correct? muscarinic: norepinephrine nicotinic; acetylchline nicotinic: norepinephrine alpha 1: acetylcholine

Which of the following is an effect of norepinephrine binding to beta 2 adrenergic receptors? vasoconstriction vasodilation an increase in heart rate lipolysis

Which of the following target organs/systems is affected by the sympathetic nervous system but is NOT affected by the parasympathetic nervous system? salivary glands cellular metabolism gallbladder lungs

Symptoms of autonomic neuropathy could include any EXCEPT which of the following? diarrhea constipation abnormal stretch reflex responses hyposecretion by sudoriferous glands

Which of the following releases the neurotransmitter norepinephrine? terminus of a parasympathetic postganglionic neuron terminus of a sympathetic postganglionic neuron terminus of a sympathetic preganglionic neuron terminus of a somatic motor neuron

Which of the following is a way in which the somatic and autonomic nervous systems are similar? Both systems elicit the same target organ responses to their neurotransmitters. Both systems share common effectors. Both systems have ganglia in their motor pathways. Both systems share common efferent pathways. None of the listed responses is correct.

Which division of the nervous system has long preganglionic neurons? sympathetic somatic motor parasympathetic somatic sensory

Which target organ is NOT affected by the parasympathetic division of the autonomic nervous system (ANS)? liver lungs heart adrenal medulla

You are designing a drug to reduce heart rate. Which receptor would you target? β1 adrenergic receptors (1 adrenergic receptors nicotinic receptors muscarinic receptors

The adrenal medulla secretes epinephrine during sympathetic stimulation. Which of the following statements describes why epinephrine would increase the sympathetic response? Epinephrine increases the action of pre- and postganglionic axons. The same receptors that respond to norepinephrine also respond to epinephrine, increasing the action of both. Epinephrine binds to a separate receptor than norepinephrine, which increases the sympathetic response. Epinephrine has no effect on sympathetic targets.

Which of the following best demonstrates an example of cooperation of the parasympathetic and sympathetic nervous systems? Sympathetic stimulation causes vasodilation of blood vessels in the clitoris, leading to erection; parasympathetic stimulation then causes reflex contractions of the vagina. Sympathetic stimulation causes vasodilation of blood vessels in the penis, leading to erection; parasympathetic stimulation then causes ejaculation. Parasympathetic stimulation causes copious sweating; sympathetic stimulation causes epidermal pores to dilate. Parasympathetic stimulation causes vasodilation of blood vessels in the penis, leading to erection; sympathetic stimulation then causes ejaculation.

Which of the following is characteristic of the parasympathetic division? stimulates secretory activity inhibited digestion and elimination dilated airways increased heart rate

Which of the following is responsible for the overall integration of the autonomic nervous system (ANS)? brain stem cerebral cortex hypothalamus peripheral ganglia

Which of the following is NOT a designation for sympathetic ganglia? trunk ganglia terminal ganglia prevertebral ganglia collateral ganglia

Which of these effectors is NOT directly controlled by the autonomic nervous system? cardiac muscle skeletal muscle smooth muscle most glands

The somatic and autonomic nervous systems differ in all of the following EXCEPT ________. their effectors target organ responses to their neurotransmitters regulation of activity by higher brain centers their efferent pathways and ganglia

Preparing the body for the "fight-or-flight" response is the role of the ________. somatic nervous system parasympathetic division cerebrum sympathetic division

The "resting and digesting" division of the autonomic nervous system is the ________. somatic division peripheral division parasympathetic division sympathetic division

The secretions of the adrenal medulla act to supplement the effects of ________. somatic stimulation parasympathetic innervation vagus (X) nerve activity sympathetic stimulation