Question 1

The_________ plexus supplies innervation to the diaphragm

Accepted Answer

The answer of The_________ plexus supplies innervation to the diaphragm...

Question 2

Which of the following is not true about a positive Babinski reflex?

Accepted Answer

A)  flaring of the toes when the sole is stroked 
B)  abnormal in adults 
C)  why you close your eyes when you sneeze 
D)  normal in newborns 
E)  a sign of injury to descending spinal tracts 
A)  flaring of the toes when the sole is stroked 
B)  abnormal in adults 
C)  why you close your eyes when you sneeze 
D)  normal in newborns 
E)  a sign of injury to descending spinal tracts

Question 3

Blood vessels that supply the spinal cord run along the surface of the

Accepted Answer

A)  subarachnoid space. 
B)  subdural space. 
C)  epidural space. 
D)  pia mater. 
E)  dura mater. 
A)  subarachnoid space. 
B)  subdural space. 
C)  epidural space. 
D)  pia mater. 
E)  dura mater.

Question 4

The dura mater tapers inferiorly to form the_____________

Accepted Answer

The answer of The dura mater tapers inferiorly to form...

Question 5

Postganglionic fibers of the autonomic nervous system that innervate internal organs do not rejoin the spinal nerve but form

Accepted Answer

A)  gray rami. 
B)  dorsal rami. 
C)  autonomic nerves. 
D)  ventral rami. 
E)  white rami. 
A)  gray rami. 
B)  dorsal rami. 
C)  autonomic nerves. 
D)  ventral rami. 
E)  white rami.

Question 6

Figure 12- 2 Spinal Nerves
Use Figure 12- 2 to answer the following questions:
-Identify the structure labeled "5."

Accepted Answer

A)  autonomic nerve 
B)  dorsal root ganglion 
C)  rami communicantes 
D)  autonomic ganglion 
E)  ventral root 
A)  autonomic nerve 
B)  dorsal root ganglion 
C)  rami communicantes 
D)  autonomic ganglion 
E)  ventral root

Question 7

In _________, one neuron synapses on several postsynaptic neurons

Accepted Answer

The answer of In _________, one neuron synapses on several...

Question 8

Figure 12- 1 The Spinal Cord
Use Figure 12- 1 to answer the following questions:
-The _______nerve, which arises in the cervical plexus, innervates the diaphragm.

Accepted Answer

A)  lesser occipital 
B)  ansa cervicalis 
C)  phrenic 
D)  sciatic 
E)  radial 
A)  lesser occipital 
B)  ansa cervicalis 
C)  phrenic 
D)  sciatic 
E)  radial

Question 9

Figure 12- 2 Spinal Nerves
Use Figure 12- 2 to answer the following questions:
-Identify the structure labeled "2."

Accepted Answer

A)  dorsal ramus 
B)  white ramus 
C)  ventral ramus 
D)  spinal nerve 
E)  ventral root 
A)  dorsal ramus 
B)  white ramus 
C)  ventral ramus 
D)  spinal nerve 
E)  ventral root

Question 10

The outward projections from the central gray matter of the spinal cord are called

Accepted Answer

A)  tracts. 
B)  fibers. 
C)  pyramids. 
D)  horns. 
E)  wings. 
A)  tracts. 
B)  fibers. 
C)  pyramids. 
D)  horns. 
E)  wings.

Question 11

The anterior horns of the spinal cord contain mainly

Accepted Answer

A)  sensory nuclei. 
B)  nerve tracts. 
C)  autonomic motor nuclei. 
D)  sympathetic nuclei. 
E)  somatic motor nuclei. 
A)  sensory nuclei. 
B)  nerve tracts. 
C)  autonomic motor nuclei. 
D)  sympathetic nuclei. 
E)  somatic motor nuclei.

Question 12

Spinal nerves from the sacral region of the cord innervate the_________ muscles.

Accepted Answer

A)  abdominal 
B)  shoulder 
C)  leg 
D)  facial 
E)  intercostal 
A)  abdominal 
B)  shoulder 
C)  leg 
D)  facial 
E)  intercostal

Question 13

In an) ____________reflex, a sensory neuron synapses directly on a motor neuron.

Accepted Answer

The answer of In an) ____________reflex, a sensory neuron synapses...

Question 14

During the procedure known as an) _________ , a needle is inserted into the subarachnoid space in the inferior lumbar region.

Accepted Answer

lumbar pun

Question 15

Figure 12- 1 The Spinal Cord
Use Figure 12- 1 to answer the following questions:
-The brachial plexus gives rise to all of the following nerves, except the

Accepted Answer

A)  phrenic. 
B)  median. 
C)  musculocutaneous. 
D)  ulnar. 
E)  radial. 
A)  phrenic. 
B)  median. 
C)  musculocutaneous. 
D)  ulnar. 
E)  radial.

Question 16

An)__________ reflex has at least one interneuron placed between the sensory and motor neurons.

Accepted Answer

The answer of An)__________ reflex has at least one interneuron...

Question 17

While playing football, Ramón is tackled hard, and as he tries to get up, he finds that he has difficulty flexing and adducting his left thigh and extending his left leg. Which nerve innervating the lower limb may be damaged, and how would the damage affect sensory perception in Ramón's left leg?

Accepted Answer

Ramón has a damaged left femoral nerve.

Question 18

If a person has a crush injury to the C3- C5 spinal segments, you would expect that he

Accepted Answer

A)  could walk without difficulty. 
B)  would be in a coma. 
C)  would have full range of motion in all extremities. 
D)  might be unable to breathe on his own. 
E)  would exhibit none of the above. 
A)  could walk without difficulty. 
B)  would be in a coma. 
C)  would have full range of motion in all extremities. 
D)  might be unable to breathe on his own. 
E)  would exhibit none of the above.

Question 19

Figure 12- 2 Spinal Nerves
Use Figure 12- 2 to answer the following questions:
-Identify the structure labeled "8."

Accepted Answer

A)  peripheral nerve 
B)  spinal nerve 
C)  dorsal ramus 
D)  dorsal root 
E)  ventral root 
A)  peripheral nerve 
B)  spinal nerve 
C)  dorsal ramus 
D)  dorsal root 
E)  ventral root

Question 20

Figure 12- 1 The Spinal Cord
Use Figure 12- 1 to answer the following questions:
-A dorsal and ventral root of each spinal segment unite to form a

Accepted Answer

A)  spinal ganglion. 
B)  cervical enlargement. 
C)  lumbar enlargement. 
D)  spinal meninx. 
E)  spinal nerve. 
A)  spinal ganglion. 
B)  cervical enlargement. 
C)  lumbar enlargement. 
D)  spinal meninx. 
E)  spinal nerve.

Exam 12: The Spinal Cord, Spinal Nerves, and Spinal Reflexes

The_________ plexus supplies innervation to the diaphragm

Which of the following is not true about a positive Babinski reflex?

Blood vessels that supply the spinal cord run along the surface of the

The dura mater tapers inferiorly to form the_____________

Postganglionic fibers of the autonomic nervous system that innervate internal organs do not rejoin the spinal nerve but form

Figure 12- 2 Spinal Nerves Use Figure 12- 2 to answer the following questions: -Identify the structure labeled "5."

In _________, one neuron synapses on several postsynaptic neurons

Figure 12- 1 The Spinal Cord Use Figure 12- 1 to answer the following questions: -The _______nerve, which arises in the cervical plexus, innervates the diaphragm.

Figure 12- 2 Spinal Nerves Use Figure 12- 2 to answer the following questions: -Identify the structure labeled "2."

The outward projections from the central gray matter of the spinal cord are called

The anterior horns of the spinal cord contain mainly

Spinal nerves from the sacral region of the cord innervate the_________ muscles.

In an) ____________reflex, a sensory neuron synapses directly on a motor neuron.

During the procedure known as an) _________ , a needle is inserted into the subarachnoid space in the inferior lumbar region.

Figure 12- 1 The Spinal Cord Use Figure 12- 1 to answer the following questions: -The brachial plexus gives rise to all of the following nerves, except the

An)__________ reflex has at least one interneuron placed between the sensory and motor neurons.

While playing football, Ramón is tackled hard, and as he tries to get up, he finds that he has difficulty flexing and adducting his left thigh and extending his left leg. Which nerve innervating the lower limb may be damaged, and how would the damage affect sensory perception in Ramón's left leg?

If a person has a crush injury to the C3- C5 spinal segments, you would expect that he

Figure 12- 2 Spinal Nerves Use Figure 12- 2 to answer the following questions: -Identify the structure labeled "8."

Figure 12- 1 The Spinal Cord Use Figure 12- 1 to answer the following questions: -A dorsal and ventral root of each spinal segment unite to form a

An Introduction to Anatomy and Physiology

The Chemical Level of Organization

The Cellular Level of Organization

The Tissue Level of Organization

The Integumentary System

Osseous Tissue and Bone Structure

The Skeleton

Articulations

Muscle Tissue

The Muscular System

Neural Tissue

The Brain and Cranial Nerves

Neural Integration

The Special Senses

The Endocrine System

Blood

The Heart

Blood Vessels and Circulation

The Lymphoid System and Immunity

The Respiratory System

The Digestive System

Metabolism and Energetics

The Urinary System

Fluid, Electrolyte, and Acid-Base Balance

The Reproductive System

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