Question 1

The flexor reflex

Accepted Answer

A)  prevents a muscle from overstretching. 
B)  prevents a muscle from generating damaging tension. 
C)  moves a limb away from a painful stimulus. 
D)  usually depends on cranial neurons. 
E)  is an example of a monosynaptic reflex. 
A)  prevents a muscle from overstretching. 
B)  prevents a muscle from generating damaging tension. 
C)  moves a limb away from a painful stimulus. 
D)  usually depends on cranial neurons. 
E)  is an example of a monosynaptic reflex.

Question 2

The large anterior gray horns of the spinal cord contain mainly

Accepted Answer

A)  somatic sensory nuclei. 
B)  somatic motor nuclei. 
C)  visceral motor nuclei. 
D)  visceral sensory nuclei. 
E)  sympathetic nuclei. 
A)  somatic sensory nuclei. 
B)  somatic motor nuclei. 
C)  visceral motor nuclei. 
D)  visceral sensory nuclei. 
E)  sympathetic nuclei.

Question 3

The reflex that prevents a muscle from exerting too much tension is the ________ reflex.

Accepted Answer

A)  stretch 
B)  tendon 
C)  flexor 
D)  crossed extensor 
E)  reciprocal 
A)  stretch 
B)  tendon 
C)  flexor 
D)  crossed extensor 
E)  reciprocal

Question 4

In-Text Figure Based Questions
-What is the area between the arachnoid mater and the pia mater? (Figure 13-3)

Accepted Answer

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

Question 5

These structures extending from the pia mater through to the dura mater support the spinal cord by preventing lateral movement.

Accepted Answer

A)  coccygeal ligament 
B)  rami communicantes 
C)  cauda equina 
D)  denticulate ligaments 
E)  spinal ligaments 
A)  coccygeal ligament 
B)  rami communicantes 
C)  cauda equina 
D)  denticulate ligaments 
E)  spinal ligaments

Question 6

The conus medullaris anchors the spinal cord to the coccygeal ligament via a strand of fibrous tissue calledthe

Accepted Answer

A)  denticulate ligament. 
B)  filum terminale. 
C)  spinal ligament. 
D)  meningeal ligament. 
E)  dura mater. 
A)  denticulate ligament. 
B)  filum terminale. 
C)  spinal ligament. 
D)  meningeal ligament. 
E)  dura mater.

Question 7

Figure 13-2 Spinal Nerves
  
Use Figure 13-2 to answer the following questions:
-Damage to which structure would lead to paralysis of limbs?

Accepted Answer

A)  11 
B)  2 
C)  1 
D)  7 
E)  9 
A)  11 
B)  2 
C)  1 
D)  7 
E)  9

Question 8

Figure 13-2 Spinal Nerves
  
Use Figure 13-2 to answer the following questions:
-Identify the structure labeled "6."

Accepted Answer

A)  autonomic nerve 
B)  sympathetic ganglion 
C)  posterior root ganglion 
D)  rami communicantes 
E)  anterior root 
A)  autonomic nerve 
B)  sympathetic ganglion 
C)  posterior root ganglion 
D)  rami communicantes 
E)  anterior root

Question 9

The dura mater tapers inferiorly to form the

Accepted Answer

A)  coccygeal ligament. 
B)  conus medullaris. 
C)  cauda equina. 
D)  subarachnoid space. 
E)  denticulate ligament. 
A)  coccygeal ligament. 
B)  conus medullaris. 
C)  cauda equina. 
D)  subarachnoid space. 
E)  denticulate ligament.

Question 10

In-Text Figure Based Questions
-What are the four ways reflexes can be classified? (Figure 13-15)

Accepted Answer

A)  monosynaptic, polysynaptic, monosegmental, polysegmental 
B)  flexor, extensor, crossed extensor, withdrawal 
C)  somatic, muscle, visceral, autonomic 
D)  development, response, complexity, processing site 
E)  dorsal, ventral, lateral, central 
A)  monosynaptic, polysynaptic, monosegmental, polysegmental 
B)  flexor, extensor, crossed extensor, withdrawal 
C)  somatic, muscle, visceral, autonomic 
D)  development, response, complexity, processing site 
E)  dorsal, ventral, lateral, central

Question 11

Figure 13-2 Spinal Nerves
  
Use Figure 13-2 to answer the following questions:
-Which branch carries motor neurons to structures on the back of the body trunk?

Accepted Answer

A)  1 
B)  2 
C)  5 
D)  7 
E)  11 
A)  1 
B)  2 
C)  5 
D)  7 
E)  11

Question 12

In-Text Figure Based Questions
-In which horn are somatic motor nuclei located? (Figure 13-5)

Accepted Answer

A)  anterior horn 
B)  posterior horn 
C)  lateral horn 
D)  dorsal horn 
E)  central horn 
A)  anterior horn 
B)  posterior horn 
C)  lateral horn 
D)  dorsal horn 
E)  central horn

Question 13

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

Accepted Answer

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

Question 14

Figure 13-1 The Spinal Cord
  
Use Figure 13-1 to answer the following questions:
-Where do somatic motor neurons reside?

Accepted Answer

A)  9 
B)  11 
C)  12 
D)  13 
E)  14 
A)  9 
B)  11 
C)  12 
D)  13 
E)  14

Question 15

Arrange the spinal meninges from innermost layer to outermost layer.

Accepted Answer

A)  dura mater, arachnoid mater, pia mater 
B)  dura mater, pia mater, arachnoid mater 
C)  arachnoid mater, pia mater, dura mater 
D)  pia mater, dura mater, arachnoid mater 
E)  pia mater, arachnoid mater, dura mater 
A)  dura mater, arachnoid mater, pia mater 
B)  dura mater, pia mater, arachnoid mater 
C)  arachnoid mater, pia mater, dura mater 
D)  pia mater, dura mater, arachnoid mater 
E)  pia mater, arachnoid mater, dura mater

Question 16

The posterior root of a spinal nerve contains

Accepted Answer

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

Question 17

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

Accepted Answer

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

Question 18

The spinal cord is part of the ________ nervous system.

Accepted Answer

A)  peripheral 
B)  somatic 
C)  central 
D)  autonomic 
E)  afferent 
A)  peripheral 
B)  somatic 
C)  central 
D)  autonomic 
E)  afferent

Question 19

Figure 13-2 Spinal Nerves
  
Use Figure 13-2 to answer the following questions:
-What is the function of the structure labeled "12"?

Accepted Answer

A)  somatic motor control 
B)  visceral motor control 
C)  somatic sensory input 
D)  visceral sensory input 
E)  sensory receptor for pain 
A)  somatic motor control 
B)  visceral motor control 
C)  somatic sensory input 
D)  visceral sensory input 
E)  sensory receptor for pain

Question 20

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

Accepted Answer

A)  might be unable to breathe on his own. 
B)  could walk without difficulty. 
C)  would have full range of motion in all extremities. 
D)  would be in a coma. 
E)  would have difficulty chewing and moving the tongue. 
A)  might be unable to breathe on his own. 
B)  could walk without difficulty. 
C)  would have full range of motion in all extremities. 
D)  would be in a coma. 
E)  would have difficulty chewing and moving the tongue.

Exam 13: The Spinal Cord, Spinal Nerves, and Spinal Reflexes

The flexor reflex

The large anterior gray horns of the spinal cord contain mainly

The reflex that prevents a muscle from exerting too much tension is the ________ reflex.

In-Text Figure Based Questions -What is the area between the arachnoid mater and the pia mater? (Figure 13-3)

These structures extending from the pia mater through to the dura mater support the spinal cord by preventing lateral movement.

The conus medullaris anchors the spinal cord to the coccygeal ligament via a strand of fibrous tissue calledthe

Figure 13-2 Spinal Nerves Use Figure 13-2 to answer the following questions: -Damage to which structure would lead to paralysis of limbs?

Figure 13-2 Spinal Nerves Use Figure 13-2 to answer the following questions: -Identify the structure labeled "6."

The dura mater tapers inferiorly to form the

In-Text Figure Based Questions -What are the four ways reflexes can be classified? (Figure 13-15)

Figure 13-2 Spinal Nerves Use Figure 13-2 to answer the following questions: -Which branch carries motor neurons to structures on the back of the body trunk?

In-Text Figure Based Questions -In which horn are somatic motor nuclei located? (Figure 13-5)

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

Figure 13-1 The Spinal Cord Use Figure 13-1 to answer the following questions: -Where do somatic motor neurons reside?

Arrange the spinal meninges from innermost layer to outermost layer.

The posterior root of a spinal nerve contains

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

The spinal cord is part of the ________ nervous system.

Figure 13-2 Spinal Nerves Use Figure 13-2 to answer the following questions: -What is the function of the structure labeled "12"?

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

An Introduction to Anatomy and Physiology

The Chemical Level of Organization

The Cellular Level of Organization

The Tissue Level of Organization

The Integumentary System

Bones and Bone Structure

The Axial Skeleton

The Appendicular Skeleton

Joints

Muscle Tissue

The Muscular System

Nervous Tissue

The Brain and Cranial Nerves

Sensory Pathways and the Somatic Nervous System

The Autonomic Nervous System and Higher-Order Functions

The Special Senses

The Endocrine System

Blood

The Heart

Blood Vessels and Circulation

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

Metabolism, Nutrition, and Energetics

The Urinary System

Fluid, Electrolyte, and Acid-Base Balance

The Reproductive System

Development and Inheritance

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