Question 1

The knee-jerk reflex involves which of the following?

Accepted Answer

A)   sensory and motor neurons
B)   sensory, association and motor neurons
C)   sensory, motor and inhibitory interneurons
D)   sensory and association neurons
E)   the brainF) A) and B)
G) C) and E)

Question 2

The __________ __________ is the basic functional unit of the nervous system and is capable of receiving a stimulus and producing a response.
reflex arc

Accepted Answer

The answer of The __________ __________ is the basic functional...

Question 3

Which nerve is involved when a dancer points his/her toes?

Accepted Answer

A)   tibial
B)   femoral
C)   obturator
D)   pudendal
E)   common fibular (peroneal) F) A) and B)
G) A) and C)

Question 4

What is found the lateral gray horns of the spinal cord?

Accepted Answer

A)   The cell bodies of somatic motor neurons.
B)   The cell bodies of sensory neurons.
C)   The cell bodies of autonomic motor neurons.
D)   The cell bodies of somatic sensory neurons.E) B) and C)
F) A) and C)

Question 5

Because the stretch reflexes can be traced back along certain spinal nerve routes,

Accepted Answer

A)   they are not used in diagnosis of brain potential brain damage.
B)   they are only useful for diagnosis if there has been damage to the spinal cord.
C)   it is possible to determine what level of the spinal cord may have been damaged.
D)   they are only helpful when diagnosing problems in the extremities.
E)   they are only helpful if the patient is conscious.F) C) and D)
G) B) and C)

Question 6

Match the term with the correct definition.
-pia mater

Accepted Answer

A)  functional unit of the nervous system
B)  most superficial and thickest meninx
C)  the middle meninx
D)  the meninx bound tightly to brain and spinal cord
E)  separates dura mater from periosteumF) A) and E)
G) None of the above

Question 7

The spinal cord

Accepted Answer

A)   controls the reticular activating system.
B)   stores reflexive memory.
C)   forms memory engrams.
D)   links the peripheral nervous system to the brain.
E)   is characterized by conscious activity.F) C) and D)
G) B) and D)

Question 8

What does "C" represent?

Accepted Answer

A)   spinal nerves
B)   conus medullaris
C)   cervical enlargement
D)   filium terminale
E)   cauda equinaF) A) and B)
G) D) and E)

Question 9

The largest peripheral nerve in the body is the ______ nerve.
sciatic

Accepted Answer

The answer of The largest peripheral nerve in the body...

Question 10

What does "A" represent?

Accepted Answer

A)   central canal
B)   ventral root
C)   dorsal root ganglion
D)   spinal nerve
E)   dorsal rootF) B) and D)
G) A) and E)

Question 11

Match the disorder with its description.
-anesthesia

Accepted Answer

A)  pain radiating down the back of the thigh and leg
B)  stiffness in the neck and headache
C)  inflammation of a nerve
D)  pain along a nerve tract
E)  loss of sensationF) A) and D)
G) A) and C)

Question 12

Match the term with the correct definition.
-arachnoid mater

Accepted Answer

A)  functional unit of the nervous system
B)  most superficial and thickest meninx
C)  the middle meninx
D)  the meninx bound tightly to brain and spinal cord
E)  separates dura mater from periosteumF) None of the above
G) A) and B)

Question 13

Reflexes

Accepted Answer

A)   are homeostatic.
B)   are not homeostatic.
C)   are voluntary conscious responses to a stimulus.
D)   are integrated in the spinal cord, but not the brain.
E)   are integrated in the brain, but not the spinal cord.F) B) and D)
G) None of the above

Question 14

A reflex that protects limbs by removing them from painful stimuli is the

Accepted Answer

A)   stretch reflex.
B)   crossed extensor reflex.
C)   Golgi tendon reflex.
D)   alternating reflex.
E)   withdrawal reflexF) A) and E)
G) A) and C)

Question 15

Match the term with the most appropriate description.
-partially responsible for a weight lifter suddenly dropping a weight that is too heavy

Accepted Answer

A)  stretch reflex
B)  Golgi tendon reflex
C)  withdrawal reflex
D)  crossed extensor reflex
E)  reciprocal innervationF) C) and D)
G) A) and E)

Question 16

In the PNS, nerves are held together by
epineurium

Accepted Answer

The answer of In the PNS, nerves are held together...

Question 17

Label component "A" on the reflex arc.

Accepted Answer

A)   sensory receptor
B)   effector organ
C)   sensory neuron
D)   motor neuron
E)   interneuronF) All of the above
G) C) and D)

Question 18

Doctor Johansson wants to test a patient's reflexes by briskly striking the patellar tendon with a reflex hammer. Which reflex is Dr. Johansson testing?

Accepted Answer

A)   the Golgi tendon reflex.
B)   the withdrawal reflex.
C)   the knee-jerk reflex.
D)   the crossed extensor reflex.
E)   reciprocal innervation.F) A) and B)
G) All of the above

Question 19

What does "B" represent?

Accepted Answer

A)   spinal nerves
B)   conus medullaris
C)   cervical enlargement
D)   filium terminale
E)   cauda equinaF) A) and C)
G) B) and D)

Question 20

Match the disorder with its description.
-neuritis

Accepted Answer

A)  pain radiating down the back of the thigh and leg
B)  stiffness in the neck and headache
C)  inflammation of a nerve
D)  pain along a nerve tract
E)  loss of sensationF) C) and E)
G) All of the above

Exam 12: Spinal Cord and Spinal Nerves

Label component "A" on the reflex arc.

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Reflexes

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In the PNS, nerves are held together by epineurium

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What does "B" represent?

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Because the stretch reflexes can be traced back along certain spinal nerve routes,

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A reflex that protects limbs by removing them from painful stimuli is the

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Match the term with the most appropriate description. -partially responsible for a weight lifter suddenly dropping a weight that is too heavy

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What is found the lateral gray horns of the spinal cord?

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What does "A" represent?

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What does "C" represent?

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Match the term with the correct definition. -arachnoid mater

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The largest peripheral nerve in the body is the ______ nerve. sciatic

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Match the disorder with its description. -neuritis

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Match the disorder with its description. -anesthesia

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The knee-jerk reflex involves which of the following?

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The spinal cord

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Doctor Johansson wants to test a patient's reflexes by briskly striking the patellar tendon with a reflex hammer. Which reflex is Dr. Johansson testing?

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The __________ __________ is the basic functional unit of the nervous system and is capable of receiving a stimulus and producing a response. reflex arc

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Which nerve is involved when a dancer points his/her toes?

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Match the term with the correct definition. -pia mater

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The is the basic functional unit of the nervous system and is capable of receiving a stimulus and producing a response. reflex arc

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