Question 1

Late one night you are leaving the science building during a massive snowstorm.As you approach your car,your right foot suddenly slips on a patch of ice.Your left leg immediately stiffens as you try to regain your balance.The reflex action you relied upon is most correctly known as a(n)

Accepted Answer

A)  multisynaptic reflex.
B)  unilateral reflex.
C)  ipsilateral reflex.
D)  contralateral reflex.
E)  None of the choices is correct.

Question 2

The Golgi tendon reflex

Accepted Answer

A)  helps to overcome pain.
B)  aids in sending sensory information to the muscles.
C)  prevents skeletal muscles from tensing excessively.
D)  prevents muscles from contracting.
E)  helps to gain balance through a complex series of muscular contractions.

Question 3

-This figure shows spinal nerve branches.What structure does number 1 indicate?

Accepted Answer

A)  Anterior ramus
B)  Posterior ramus
C)  Rami communicantes
D)  Sympathetic trunk ganglion
E)  Posterior root ganglion

Question 4

Which space associated with the spinal cord meninges contains areolar connective tissue,blood vessels,and adipose connective tissue?

Accepted Answer

A)  Subarachnoid space
B)  Epidural space
C)  Central canal
D)  Subdural space
E)  Epiarachnoid space

Question 5

The spinal cord and spinal nerves are exclusively responsible for some reflexes.

Accepted Answer

A) True 
 B)False

Question 6

The lateral horns of the spinal cord contain

Accepted Answer

A)  axons of motor neurons and interneuron cell bodies.
B)  axons of sensory and motor neurons.
C)  axons of interneurons.
D)  axons of sensory neurons and interneuron cell bodies.
E)  cell bodies of autonomic motor neurons.

Question 7

The anterior ramus of a typical spinal nerve innervates the

Accepted Answer

A)  deep muscles of the back and the skin of the back.
B)  major thoracic and abdominal organs.
C)  abdominal wall.
D)  anterior and lateral trunk and the limbs.
E)  special senses.

Question 8

A typical spinal cord in an adult is

Accepted Answer

A)  24-26 inches long.
B)  12-14 inches long.
C)  8-10 inches long.
D)  16-18 inches long.
E)  20-24 inches long.

Question 9

-This figure shows a cross section of the spinal cord.What structure does number 2 indicate?

Accepted Answer

A)  Lateral horn
B)  Anterior horn
C)  Gray commissure
D)  Posterior horn
E)  Posterior funiculus

Question 10

Which spinal nerves contribute to the brachial plexus?

Accepted Answer

A)  S1-Co1
B)  L1-L5
C)  C5-T1
D)  L4-S4
E)  C1-C5

Question 11

Which of these spinal nerve counts is incorrect?

Accepted Answer

A)  Thoracic nerves = 8 pairs
B)  Cervical nerves = 8 pairs
C)  Lumbar nerves = 5 pairs
D)  Sacral nerves = 5 pairs
E)  Coccygeal nerves = 1 pair

Question 12

The largest and longest nerve in the body is the _________ nerve.

Accepted Answer

A)  femoral
B)  radial
C)  sciatic
D)  obturator
E)  saphenous

Question 13

-This figure shows a cross section of the spinal cord.What structure does number 3 indicate?

Accepted Answer

A)  Posterior funiculus
B)  White commissure
C)  Anterior funiculus
D)  Lateral funiculus
E)  Anterior median fissure

Question 14

Spinal nerves exit the vertebral canal and travel through an intervertebral foramen above or below the vertebra of the same number.The exception is

Accepted Answer

A)  C4.
B)  C8.
C)  T1.
D)  L5.
E)  S8.

Question 15

The thin strand of pia mater that helps to anchor the spinal cord to the coccyx is the

Accepted Answer

A)  conus medullaris.
B)  cervical enlargement.
C)  terminus coccyx.
D)  filum terminale.
E)  coccygeal tendon.

Question 16

The tapered,conical inferior end of the spinal cord is called the conus

Accepted Answer

A)  finalis.
B)  medullaris.
C)  equine.
D)  caudalis.

Question 17

Following an injury to his arm,a patient complains that he has no sensations from the thumb,index finger,middle finger,and part of the ring finger.You suspect that he has damaged the

Accepted Answer

A)  median nerve.
B)  radial nerve.
C)  musculocutaneous nerve.
D)  ulnar nerve.
E)  axillary nerve.

Question 18

The _______ nuclei within the gray matter of the spinal cord send nerve impulses to skeletal muscles.

Accepted Answer

A)  sensory
B)  visceral sensory
C)  somatic sensory
D)  autonomic motor
E)  somatic motor

Question 19

-This figure shows the spinal cord and spinal nerves.What structure does number 2 indicate?

Accepted Answer

A)  Dura mater
B)  Filum terminale
C)  Cauda equina
D)  Conus medullaris
E)  Posterior rootlets

Exam 16: Spinal Cord and Spinal Nerves

Which of these spinal nerve counts is incorrect?

Correct Answer
verified

The spinal cord and spinal nerves are exclusively responsible for some reflexes.

Correct Answer
verified

-This figure shows spinal nerve branches.What structure does number 1 indicate?

Correct Answer
verified

-This figure shows a cross section of the spinal cord.What structure does number 2 indicate?

Correct Answer
verified

Which spinal nerves contribute to the brachial plexus?

Correct Answer
verified

The anterior ramus of a typical spinal nerve innervates the

Correct Answer
verified

The tapered,conical inferior end of the spinal cord is called the conus

Correct Answer
verified

The thin strand of pia mater that helps to anchor the spinal cord to the coccyx is the

Correct Answer
verified

A typical spinal cord in an adult is

Correct Answer
verified

-This figure shows the spinal cord and spinal nerves.What structure does number 2 indicate?

Correct Answer
verified

Following an injury to his arm,a patient complains that he has no sensations from the thumb,index finger,middle finger,and part of the ring finger.You suspect that he has damaged the

Correct Answer
verified

-This figure shows a cross section of the spinal cord.What structure does number 3 indicate?

Correct Answer
verified

Which space associated with the spinal cord meninges contains areolar connective tissue,blood vessels,and adipose connective tissue?

Correct Answer
verified

Spinal nerves exit the vertebral canal and travel through an intervertebral foramen above or below the vertebra of the same number.The exception is

Correct Answer
verified

The largest and longest nerve in the body is the _________ nerve.

Correct Answer
verified

The lateral horns of the spinal cord contain

Correct Answer
verified

Late one night you are leaving the science building during a massive snowstorm.As you approach your car,your right foot suddenly slips on a patch of ice.Your left leg immediately stiffens as you try to regain your balance.The reflex action you relied upon is most correctly known as a(n)

Correct Answer
verified

The _______ nuclei within the gray matter of the spinal cord send nerve impulses to skeletal muscles.

Correct Answer
verified

The Golgi tendon reflex

Correct Answer
verified

Exam 16: Spinal Cord and Spinal Nerves

Which of these spinal nerve counts is incorrect?

Correct AnswerverifiedShow Answer

The spinal cord and spinal nerves are exclusively responsible for some reflexes.

Correct AnswerverifiedShow Answer

-This figure shows spinal nerve branches.What structure does number 1 indicate?

Correct AnswerverifiedShow Answer

-This figure shows a cross section of the spinal cord.What structure does number 2 indicate?

Correct AnswerverifiedShow Answer

Which spinal nerves contribute to the brachial plexus?

Correct AnswerverifiedShow Answer

The anterior ramus of a typical spinal nerve innervates the

Correct AnswerverifiedShow Answer

The tapered,conical inferior end of the spinal cord is called the conus

Correct AnswerverifiedShow Answer

The thin strand of pia mater that helps to anchor the spinal cord to the coccyx is the

Correct AnswerverifiedShow Answer

A typical spinal cord in an adult is

Correct AnswerverifiedShow Answer

-This figure shows the spinal cord and spinal nerves.What structure does number 2 indicate?

Correct AnswerverifiedShow Answer

Following an injury to his arm,a patient complains that he has no sensations from the thumb,index finger,middle finger,and part of the ring finger.You suspect that he has damaged the

Correct AnswerverifiedShow Answer

-This figure shows a cross section of the spinal cord.What structure does number 3 indicate?

Correct AnswerverifiedShow Answer

Which space associated with the spinal cord meninges contains areolar connective tissue,blood vessels,and adipose connective tissue?

Correct AnswerverifiedShow Answer

Spinal nerves exit the vertebral canal and travel through an intervertebral foramen above or below the vertebra of the same number.The exception is

Correct AnswerverifiedShow Answer

The largest and longest nerve in the body is the _________ nerve.

Correct AnswerverifiedShow Answer

The lateral horns of the spinal cord contain

Correct AnswerverifiedShow Answer

Late one night you are leaving the science building during a massive snowstorm.As you approach your car,your right foot suddenly slips on a patch of ice.Your left leg immediately stiffens as you try to regain your balance.The reflex action you relied upon is most correctly known as a(n)

Correct AnswerverifiedShow Answer

The _______ nuclei within the gray matter of the spinal cord send nerve impulses to skeletal muscles.

Correct AnswerverifiedShow Answer

The Golgi tendon reflex

Correct AnswerverifiedShow Answer

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