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Adrenergic neurons release the neurotransmitter _________________________.

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Increased parasympathetic stimulation


A) increases heart rate.
B) increases the general level of activity of the digestive system.
C) causes sweat glands to release sweat.
D) causes blood vessels in the skin to dilate.
E) causes the pupils to dilate.

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The _________________________ plexus is located between the neck and the axilla.

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Match the cranial nerve in the first column with its innervation in the second column. _____ 1. oculomotor A. 3 out of 4 rectus muscles of the eye _____ 2. trigeminal B. tongue muscles _____ 3. hypoglossal C. teeth, muscles of mastication _____ 4. vagus D. ear _____ 5. vestibulocochlear E. thoracic and abdominal organs

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1-A, 2-C, ...

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What is the function of the cerebral association areas?


A) to analyze and interpret sensory information
B) memory
C) reasoning
D) learning
E) all of the above

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The visual cortex is located in the


A) frontal lobe.
B) parietal lobe.
C) temporal lobe.
D) occipital lobe.
E) cerebellum.

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Which of the following is a function of the motor division of the nervous system?


A) providing sensation of the internal and external environments
B) integrating sensory information
C) coordinating voluntary and involuntary activities
D) sending signals to muscles
E) regulating or controlling peripheral structures and systems

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The following is a series of events that occur at a typical cholinergic synapse. Place the events in the correct sequence. 1. Calcium ions enter the cytoplasm of the synaptic knob and ACh release occurs. 2) Arriving action potential depolarizes the synaptic knob and the presynaptic membrane. 3) Depolarization ends as ACh is broken down into acetate and choline by AChE. 4) ACh release ceases because calcium ions are removed from the cytoplasm of the synaptic knob. 5) The synaptic knob reabsorbs choline from the synaptic cleft and uses it to resynthesize ACh. 6) ACh diffuses across the synaptic cleft and binds to receptors on the postsynaptic membrane. 7) Sodium channels on postsynaptic surface are activated, producing a graded depolarization. The correct sequence of events is


A) 2, 1, 6, 7, 4, 3, 5.
B) 2, 6, 4, 1, 3, 5, 7.
C) 1, 3, 5, 7, 2, 4, 6.
D) 1, 2, 4, 5, 3, 6, 7.
E) 7, 4, 5, 6, 2, 3, 1.

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Voluntary control of skeletal muscles is provided by the


A) posterior column.
B) reticular formation.
C) spinothalamic tract.
D) corticospinal pathway.
E) medullary centers.

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The gaps between adjacent Schwann cells along the length of an axon are called _________________________.

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The cranial nerves that are primarily sensory include


A) I, II, and V.
B) I, V, and VIII.
C) II, III, and VIII.
D) I, II, and VIII.
E) I, III, and VIII.

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Which of the following lists the parts of a reflex arc in the correct order?


A) receptor, sensory neuron, interneuron, motor neuron, effector
B) receptor, effector, sensory neuron, interneuron, motor neuron
C) receptor, sensory neuron, effector, interneuron, motor neuron
D) effector, receptor, sensory neuron, interneuron, motor neuron
E) receptor, interneuron, sensory neuron, motor neuron, effector

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Neurotransmitters are released from the


A) dendrites.
B) synaptic terminals/knobs.
C) collaterals.
D) hillock.
E) synapse.

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Neurons that have several dendrites and a single axon extending away from the soma are called


A) polypolar.
B) unipolar.
C) bipolar.
D) tripolar.
E) multipolar.

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Neural reflexes


A) are automatic motor responses.
B) are triggered by specific stimuli.
C) help preserve homeostasis.
D) show little variability in response.
E) all of the above

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Which of the following are usually adrenergic fibers?


A) sympathetic postganglionic
B) sympathetic preganglionic
C) parasympathetic preganglionic
D) parasympathetic postganglionic
E) somatic

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The _________________________ nervous system provides involuntary regulation of smooth muscle, cardiac muscle, and glandular activity.

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The _________________________ is the layer of the meninges that is in direct contact with the surface of the brain.

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Masses of myelinated nerve fibers appear


A) gray.
B) white.
C) yellow.
D) brown.
E) transparent.

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The spinal tract or pathway that carries information regulating skeletal muscle tone is the


A) posterior column.
B) spinothalamic.
C) corticospinal.
D) medial and lateral.
E) spinocerebellar.

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