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Damage to the terminal ganglia would have the greatest effect on


A) somatic motor nerves.
B) sympathetic motor nerves.
C) parasympathetic motor nerves.
D) somatic reflex function.

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The collateral ganglia contain


A) α\alpha -adrenergic receptors.
B) β\beta -adrenergic receptors.
C) muscarinic receptors.
D) nicotinic receptors.

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Which organ receives only sympathetic innervation?


A) the adrenal medulla
B) arrector pili muscles in the skin
C) most blood vessels
D) All apply.

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Which autonomic division is dominant in normal body functions such as digestion?


A) sympathetic
B) parasympathetic

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_____________ is a muscarinic antagonist derived from the nightshade plant.


A) Clonidine
B) Nicotine
C) Atropine
D) Bradykinin

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Compared to norepinephrine,epinephrine has one less methyl group.

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"Synapses en passant" refers to the fact that postganglionic autonomic neurons release neurotransmitter


A) from the axon terminal.
B) only when receptors pass over the axon.
C) along the length of the axon.
D) from the soma.

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Where do autonomic postganglionic neurons originate?


A) hindbrain
B) gray matter of spinal cord
C) peripheral ganglia
D) All apply.

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The sympathetic chain ganglia are found laterally on both sides of the spinal cord.

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____________ fibers have relatively slower nerve conduction because they are thin and unmyelinated.


A) Preganglionic autonomic sympathetic
B) Postganglionic autonomic sympathetic
C) Preganglionic somatic
D) Postganglionic somatic

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The paravertebral and collateral ganglia are associated with the _____________ division of the autonomic nervous system.


A) sympathetic
B) parasympathetic
C) somatic
D) sensory

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Which of the following is NOT a collateral ganglion?


A) superior mesenteric
B) hepatic
C) celiac
D) inferior mesenteric

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The division of the autonomic nervous system originating only from spinal nerves


A) is involved in mediating every day responses.
B) has adrenergic receptors on the postganglionic cell body.
C) releases acetylcholine from the postganglionic neuron.
D) mediates the body's response to stress.

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Parasympathetic stimulation increases the rate of passage of material in the small intestine.

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Organs innervated by autonomic motor neurons are often under voluntary control.

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The major regulatory center of the autonomic system is,according to many scientists,the ______________ since this brain region has functions,such as control of body temperature,that require appropriate activation of sympathetic and parasympathetic nerves.


A) hypothalamus
B) thalamus
C) midbrain
D) cerebrum

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Ablation of the celiac ganglia would inhibit sympathetic regulation of the adrenal glands.

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All adrenergic receptors act via


A) ligand-gated channels.
B) sodium-potassium pump.
C) H-proteins.
D) G-proteins.

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The ___________________________ are branches made from the myelinated preganglionic sympathetic axons that go from the spinal nerves to sympathetic ganglia chain.


A) dorsal rami
B) ventral rami
C) white rami communicantes
D) gray rami communicantes

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The parasympathetic division of the autonomic nervous system


A) has long postganglionic neurons.
B) has a single neuron arising from the spinal cord.
C) has relatively short preganglionic neurons.
D) has terminal ganglia embedded in the visceral effectors.

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