Multiple Choice
Which of the following is the longest nerve in the human body?
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13. The Peripheral Nervous System
Introduction to the Peripheral Nervous System
Back13. The Peripheral Nervous System
Introduction to the Peripheral Nervous System
- Multiple ChoiceWhat is the primary function of the somatic nervous system?91views
- Multiple ChoiceWhere do the cervical spinal nerves originate in the central nervous system?180views
- Multiple ChoiceMost sensory afferent pain fibers enter the spinal cord by way of the ________ nerve roots.27views
- Multiple ChoiceWhich of the following nerves does not arise from the brachial plexus?163views
- Multiple ChoiceWhich division of the human nervous system carries signals to skeletal muscles?152views
- Multiple ChoiceWhich nerve extends down the thumb side of the arm into the back of the hand?27views
- Multiple ChoiceWhich of the following is true about spinal nerves?23views
- Multiple Choice
Which of the following structures can be found in the afferent division of the PNS?
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Match each type of neuroglial cell with its correct function.
____ Schwann cells
____ Ependymal cells
____ Microglial cells
____ Oligodendrocytes
____ Satellite cells
____ Astrocytes
a. Phagocytic cells of the CNS
b. Surround the cell bodies of neurons in the PNS
c. Create the myelin sheath in the PNS
d. Anchor neurons and blood vessels, maintain extracellular environment around neurons, assist in repair of damaged brain tissue
e. Create the myelin sheath in the CNS
f. Ciliated cells in the CNS that produce and circulate the fluid around the brain and spinal cord
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Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
d. The term nerve is the equivalent of the term neuron.
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Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
e. There are 31 pairs of spinal nerves and 12 pairs of cranial nerves.
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The anterior roots of each spinal segment
(a) Bring sensory information into the spinal cord
(b) Control peripheral effectors
(c) Contain the axons of somatic motor and visceral motor neurons
(d) Do both b and c
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Spinal nerves are called mixed nerves because they
(a) Contain sensory and motor fibers
(b) Exit at intervertebral foramina
(c) Are associated with a pair of spinal ganglia
(d) Are associated with posterior and anterior roots
556views1rank - Textbook Question
Match the names of the cranial nerves in column B to the appropriate description in column A.
Column A
_______ (1) Causes pupillary constriction
_______ (2) The major sensory nerve of the face
_______ (3) Serves the sternocleido-mastoid and trapezius muscles
_______ (4) Purely sensory (two nerves)
_______ (5) Serves the tongue muscles
_______ (6) Allows you to chew your food
_______ (7) Impaired in Bell's palsy
_______ (8) Helps regulate heart activity
_______ (9) Helps you hear and maintain your balance
_______ (10) Contain parasympathetic motor fibers (four nerves)
Column B
a. Abducens
b. Accessory
c. Facial
d. Glossopharyngeal
e. Hypoglossal
f. Oculomotor
g. Olfactory
h. Optic
i. Trigeminal
j. Trochlear
k. Vagus
l. Vestibulocochlear
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