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The sympathetic chain ganglion consists of 22 pairs of ganglia.

A) True
B) False

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What structure has overall control of the ANS?


A) Medulla oblongata
B) Pons
C) Cerebrum
D) Hypothalamus

E) All of the above
F) B) and D)

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Eighty percent of the adrenal medulla cells secrete norepinephrine when stimulated.

A) True
B) False

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Adrenergic receptors can be stimulated by the nervous system and hormones from the adrenal gland.

A) True
B) False

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Why does the sympathetic division of the ANS have a more generalized effect in the body?


A) One preganglionic neuron synapses with many postganglionic neurons
B) One preganglionic neuron synapses with one or two postganglionic neurons
C) The secretion of epinephrine and norepinephrine can effect many organs
D) Both choices A and C are correct

E) None of the above
F) A) and B)

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Another name for the sympathetic division is the


A) Craniosacral division
B) Enteric division
C) Thoracolumbar division
D) Cervicothoracic division

E) None of the above
F) A) and B)

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The _______________ neuron runs from the CNS and the autonomic ganglion.


A) Somatic motor
B) Postganglionic
C) Preganglionic
D) Sensory

E) A) and D)
F) All of the above

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Which of the following differences between the central nervous system and the autonomic nervous system is incorrect?


A) CNS - one neuron to effector; ANS - two neurons to effector
B) CNS - innervates skeletal muscle; ANS - innervates smooth and cardiac muscles and glands
C) CNS - axons myelinated; ANS - preganglionic axons myelinated, postganglionic axons unmyelinated
D) CNS - always excitatory; ANS - always inhibitory

E) A) and C)
F) B) and C)

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Which division of the ANS has a more generalized effect in the body?


A) Sympathetic
B) Parasympathetic

C) A) and B)
D) undefined

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The sympathetic division is always stimulatory and the parasympathetic division is always inhibitory.

A) True
B) False

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Splanchnic nerves that do not synapse in either the chain ganglion nor the collateral ganglion will synapse with specialized neurons in the


A) Heart
B) Adrenal medulla
C) Diaphragm
D) Urinary bladder

E) B) and C)
F) None of the above

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Which division of the ANS has the major influence under conditions of physical activity or stress?


A) Sympathetic
B) Parasympathetic

C) A) and B)
D) undefined

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In general, stimulation of the anterior hypothalamus produces sympathetic responses.

A) True
B) False

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Sensory neurons can be classified as either somatic or autonomic.

A) True
B) False

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Which of the following is a function of the parasympathetic division?


A) Release of epinephrine
B) Decreased insulin secretion
C) Increased production of viscous saliva
D) Constriction of airways

E) A) and B)
F) A) and C)

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The nerve plexuses of the enteric nervous system receive contributions from all of the following except


A) Enteric neurons of the enteric plexuses
B) ANS neurons that connect the CNS to the digestive tract
C) Somatic motor neurons that connect the CNS to the digestive tract
D) Sensory neurons that connect the digestive tract to the CNS

E) C) and D)
F) A) and B)

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A sudden increase in blood pressure detected by baroreceptors in the walls of large arteries near the heart will cause


A) Parasympathetic reduction of heart rate and sympathetic dilation of blood vessels
B) Sympathetic reduction of heart rate and parasympathetic dilation of blood vessels
C) Parasympathetic increase of heart rate and sympathetic constriction of blood vessels
D) Sympathetic increase of heart rate and parasympathetic constriction of blood vessels

E) A) and D)
F) A) and C)

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The enteric nervous system can act independently of the CNS through local reflexes.

A) True
B) False

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Cholinergic receptors on ANS effectors are called


A) Nicotinic receptors
B) Alpha receptors
C) Muscarinic receptors
D) Beta receptors

E) A) and D)
F) A) and C)

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To say that the ANS supplies skeletal muscle means that the ANS innervates the skeletal muscle.

A) True
B) False

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