P2 Chapter 15 AUTONOMIC NERVOUS SYSTEM Flashcards
Interoceptors are found in
a) blood vessels
b) visceral organs
c) muscles
d) all of these choices
e) none of these choices
d) all of these choices
Autonomic motor neurons regulate visceral activities by
- increasing activities in effector tissue.
- decreasing activities in effector tissue.
- changing the direction of impulse conduction across synapses.
a) 1 only
b) 2 only
c) 3 only
d) Both 1 and 2
e) None of these choices
d) Both 1 and 2
The autonomic nervous system is NOT involved in controlling
a) exocrine glands.
b) skeletal muscle.
c) cardiac muscle.
d) smooth muscle.
e) endocrine glands.
b) skeletal muscle.
Which of the following descriptions of a preganglionic neuron is NOT correct?
a) Has axons that exit the CNS in a cranial or spinal nerve.
b) Has myelinated axons.
c) Forms the first part of an autonomic motor pathway.
d) Has its cell body in the brain or spinal cord.
e) Forms gap junctions with postganglionic neurons in autonomic ganglia.
e) Forms gap junctions with postganglionic neurons in autonomic ganglia.
A postganglionic neuron in the ANS
a) releases neurotransmitter that binds to the effector cell.
b) is the first part of an autonomic motor pathway.
c) has its cell body in the brain or spinal cord.
d) has its axons exiting the CNS through cranial nerves.
e) carries information into the sympathetic chain ganglia.
a) releases neurotransmitter that binds to the effector cell.
Which of the following types of neurons would normally have the shortest axon?
a) Somatic motor neurons
b) Preganglionic parasympathetic neurons
c) Postganglionic sympathetic neurons
d) Preganglionic sympathetic neurons
e) Somatosensory neurons
d) Preganglionic sympathetic neurons
Which of the following does NOT describe the sympathetic division of the ANS?
a) Ganglia primarily found in the head
b) Stimulates sweat glands
c) Synapses with smooth muscle in blood vessel walls
d) Short preganglionic neurons
e) Thoracolumbar output
a) Ganglia primarily found in the head
Which of the following does NOT describe the parasympathetic division of the ANS?
a) Long preganglionic neurons
b) Synapses with smooth muscle in blood vessels walls
c) Vagus nerve output
d) Ganglia found near visceral effectors
e) Sacral spinal cord output
b) Synapses with smooth muscle in blood vessels walls
Which of the following terms is used to designate an effector that is innervated by both the parasympathetic and sympathetic divisions of the ANS?
a) Preganglionic stimulation
b) Biganglion excitation
c) Multi-autonomic output
d) Bipolar innervation
e) Dual innervation
e) Dual innervation
Which of the following is NOT a sympathetic prevertebral ganglion?
a) Celiac ganglion
b) Ciliary ganglion
c) Superior mesenteric ganglion
d) Inferior mesenteric ganglion
e) All are prevertebral ganglia
b) Ciliary ganglion
Which of the following is NOT a parasympathetic terminal ganglion?
a) Ciliary ganglion
b) Pterygopalatine ganglion
c) Submandibular ganglion
d) Otic ganglion
e) All are parasympathetic terminal ganglia
e) All are parasympathetic terminal ganglia
The largest autonomic plexus is called the
a) superior mesenteric plexus.
b) renal plexus.
c) cardiac plexus.
d) celiac plexus.
e) hypogastric plexus.
d) celiac plexus.
Which autonomic plexus is located anterior to the fifth lumbar vertebra and serves the pelvic viscera?
a) Inferior mesenteric plexus
b) Renal plexus
c) Celiac plexus
d) Hypogastric plexus
e) Superior mesenteric plexus
d) Hypogastric plexus
) Which of the following are structures containing sympathetic preganglionic axons that connect the anterior ramus of the spinal nerve with the ganglia of the sympathetic trunk?
a) Lumbar splanchnic nerve
b) Greater splanchnic nerve
c) Inferior cervical ganglion
d) White rami communicantes
e) Gray rami communicantes
d) White rami communicantes
Which ganglia contain the cell bodies of the parasympathetic postganglionic neurons that serve the parotid salivary glands?
a) Ciliary ganglia
b) Pterygopalatine ganglia
c) Submandibular ganglia
d) Otic ganglia
e) None of these choices
d) Otic ganglia
The two main neurotransmitters of the autonomic nervous system are
a) nicotine and adrenaline.
b) muscarine and acetylcholine.
c) norepinephrine and muscarine.
d) norepinephrine and acetylcholine.
e) somatostatin and nicotine.
d) norepinephrine and acetylcholine.
) Acetylcholine is released by _____ postganglionic neurons and is removed from the synaptic cleft at a _____ rate than norepinephrine.
a) sympathetic; slower
b) sympathetic; faster
c) parasympathetic; slower
d) parasympathetic; faster
e) both parasympathetic and sympathetic; slower
d) parasympathetic; faster
Which of the following are types of cholinergic receptors?
a) Nicotinic and adrenergic receptors
b) Muscarinic and somatic receptors
c) Adrenergic and somatic receptors
d) Nicotinic and muscarinic receptors
e) Somatostatic and nicotinic receptors
d) Nicotinic and muscarinic receptors
Autonomic tone is regulated by the
a) medulla oblongata.
b) cerebellum.
c) cerebrum.
d) vermis.
e) hypothalamus.
e) hypothalamus
Which of the following responses is NOT caused by activation of the parasympathetic division of the ANS?
a) Decreased heart rate
b) Airway dilation
c) Decreased pupil diameter
d) Increased secretion of digestive juices
e) Increased gastric motility
b) Airway dilation
Which of the following does NOT contribute to the longer lasting and more widespread effects observed with sympathetic activation versus parasympathetic activation?
a) Norepinephrine is more slowly removed from synapses than ACh.
b) Additional norepinephrine is released from the adrenal gland.
c) Greater divergence occurs in sympathetic neural pathways.
d) Blood flow to the hypothalamus is decreased when sympathetic activation occurs.
d) Blood flow to the hypothalamus is decreased when sympathetic activation occurs.
Which of the following responses is NOT caused by activation of the sympathetic division?
a) Increased heart rate
b) Airway constriction
c) Decreased blood flow to kidneys and gastrointestinal tract
d) Increased blood flow to skeletal muscle, cardiac muscle, liver and fat
e) Increased blood glucose level
b) Airway constriction
What region does the superior cervical ganglion primarily serve?
a) Abdominal
b) Pelvic
c) Skin
d) Head
e) None of these choices
d) Head
Which ganglion supplies the stomach with postganglionic neurons?
a) Middle cervical ganglion
b) Inferior cervical ganglion
c) Celiac ganglion
d) Inferior mesenteric ganglion
e) Ciliary ganglion
c) Celiac ganglion
Which nerve supplies the inferior mesenteric ganglion with preganglionic neurons?
a) Lumbar splanchnic nerve
b) Lesser splanchnic nerve
c) Greater splanchnic nerve
d) Cardiac accelerator
e) Phrenic nerve
a) Lumbar splanchnic nerve