Chapters 11-20/Midterm 2 review Flashcards
(121 cards)
All of the following cranial nerves have a functional classification of motor except: oculomotor; vestibulocochlear;trochlear;accessory
Vestibulocochlear
The nerve called the vagus nerve is the:
a. ninth cranial.
b. tenth cranial.
c. eleventh cranial.
d. twelfth cranial.
Tenth
Which of the following cranial nerves is responsible for movements of the tongue?
a. Olfactory
b. Trigeminal
c. Trochlear
d. Hypoglossal
Hypoglossal
All of the following cranial nerves are involved in proprioception except the:
a. vagus.
b. hypoglossal.
c. accessory.
d. abducens.
Vagus
Which of the following is not a plexus of the spinal nerves?
a. Cervical
b. Brachial
c. Lumbar
d. Thoracic
Thoracic
The cervical plexus:
a. is found deep in the neck.
b. is formed by the ventral rami of the first four cervical nerves and part of C5.
c. includes the phrenic nerve.
d. All of the above are correct.
All of the above
Which plexus contains nerves that innervate the lower part of the shoulder and the entire arm?
a. Brachial
b. Cervical
c. Lumbar
d. Sacral
Brachial
The sensory cranial nerves include only the:
a. optic, vestibulocochlear, and vagus.
b. olfactory, optic, and facial.
c. olfactory, optic, and vestibulocochlear.
d. optic, facial, and vestibulocochlear.
Olfactory, optic, and vestibulocochlear`
- Nerve impulses over the ____ nerve cause increased peristalsis and decreased heart rate.
a. olfactory
b. trigeminal
c. vagus
d. hypoglossal
Vagus
The spinal nerves are connected to the spinal cord and consist of:
a. 12 pairs.
b. 21 pairs.
c. 31 pairs.
d. 41 pairs.
31 pairs
Which of the following is true about spinal nerves? They are:
a. only sensory fibers.
b. only motor fibers.
c. completely autonomic fibers.
d. motor and sensory fibers.
Motor and sensory fibers
A mixed nerve is one that:
a. goes both to the skin surface and to the viscera.
b. has its pathway mixed with other nerves.
c. carries both sensory and motor fibers.
d. carries large and small motor fibers.
Carries both sensory and motor fibers
The phrenic nerve is found in the:
a. cervical plexus.
b. brachial plexus.
c. lumbar plexus.
d. sacral plexus.
Cervical plexus
Which is/are the neurotransmitter(s) in a somatic motor pathway?
a. Acetylcholine
b. Amines
c. Amino acids
d. Both A and C.
Acetylcholine
Nerves that innervate the floor of the pelvic cavity and some of the surrounding areas are found in the:
a. sacral plexus.
b. cervical plexus.
c. coccygeal plexus.
d. lumbar plexus.
Coccygeal plexus
Somatic reflexes consist of:
a. contractions of smooth muscle.
b. contractions of cardiac muscle.
c. glandular contractions.
d. contractions of skeletal muscles.
Contractions of skeletal muscles
Which generalization concerning the autonomic nervous system is not true?
a. All of its axons are afferent fibers.
b. It operates without conscious control.
c. It regulates visceral activities.
d. All of its neurons are motor.
All of its axons are afferent fibers
Which of the following would not be an effecter of the autonomic nervous system?
a. Skeletal muscles
b. Smooth muscle
c. Sweat glands
d. Cardiac muscle
Skeletal muscles
Somatic motor and autonomic pathways share all of the following characteristics except:
a. Made up of mostly efferent fibers
b. Location of peripheral fibers
c. Number of neurons between CNS and effector
d. Have acetylcholine as a neurotransmitter
Number of neurons between CNS and effector
The autonomic nervous system functions chiefly in the:
a. coordination of muscular activity.
b. innervation of smooth muscle in the viscera.
c. reception of sensory impulses.
d. arousal of alerting mechanism.
Innervation of smooth muscle in the viscera
Sympathetic responses generally have widespread effects on the body because:
a. they reach visceral effectors faster than parasympathetic impulses.
b. the synapses junctions contain a substance that inactivates acetylcholine.
c. preganglionic fibers are short, and postganglionic fibers are long.
d. preganglionic fibers synapse with several postganglionic fibers.
d. preganglionic fibers synapse with several postganglionic fibers.
Parasympathetic preganglionic neuron cell bodies are located in:
a. the white columns of the sacral segments of the spinal cord.
b. the lateral gray columns of thoracic segments of the spinal cord.
c. nuclei of the brainstem and the lateral gray columns of the sacral cord.
d. the cervical plexus.
c. nuclei of the brainstem and the lateral gray columns of the sacral cord.
Which of the following is not an example of sympathetic stimulation?
a. Constriction of the bronchioles
b. Faster contraction of the skeletal muscles
c. Increase in blood sugar levels
d. Dilation of skeletal muscle blood vessels
a. Constriction of the bronchioles
All of the following are examples of parasympathetic stimulation except:
a. promotes digestion.
b. constricts bronchioles.
c. increased peristalsis.
d. increased heart rate.
d. increased heart rate.