Question 1

Cerebrospinal fluid flows within the

Accepted Answer

A)  arachnoid mater. 
B)  pia mater. 
C)  dura mater. 
D)  subarachnoid space. 
E)  filum terminale. 
A)  arachnoid mater. 
B)  pia mater. 
C)  dura mater. 
D)  subarachnoid space. 
E)  filum terminale.

Question 2

Figure 12- 1 The Spinal Cord
Use Figure 12- 1 to answer the following questions:
-The ventral rami form four major plexuses, including all of the following, except the_______ plexus.

Accepted Answer

A)  lumbar 
B)  cervical 
C)  nuchal 
D)  brachial 
E)  sacral 
A)  lumbar 
B)  cervical 
C)  nuchal 
D)  brachial 
E)  sacral

Question 3

Sometimes, when it is difficult to initiate a knee- jerk reflex by tapping the patellar tendon, a patient will be asked to voluntarily make a fist. Then the reflex will be easily evoked. What does this illustrate about the relation between voluntary and involuntary reflex movement?

Accepted Answer

Descending motor tracts that excite the

Question 4

The gray horns of the spinal cord contain mainly

Accepted Answer

A)  meninges. 
B)  columns. 
C)  funiculi. 
D)  nerve tracts. 
E)  nerve cell bodies. 
A)  meninges. 
B)  columns. 
C)  funiculi. 
D)  nerve tracts. 
E)  nerve cell bodies.

Question 5

The ______reflex complements the flexor reflex by activating contralateral muscles.

Accepted Answer

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

Question 6

Figure 12- 2 Spinal Nerves
Use Figure 12- 2 to answer the following questions:
-Identify the structure labeled "6."

Accepted Answer

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

Question 7

Figure 12- 2 Spinal Nerves
Use Figure 12- 2 to answer the following questions:
-All of the following are true of polysynaptic reflexes, except that they

Accepted Answer

A)  have reverberating circuits that prolong the reflexive motor response. 
B)  are intersegmental in distribution. 
C)  are arranged according to dermatomes. 
D)  involve pools of interneurons. 
E)  involve reciprocal innervation. 
A)  have reverberating circuits that prolong the reflexive motor response. 
B)  are intersegmental in distribution. 
C)  are arranged according to dermatomes. 
D)  involve pools of interneurons. 
E)  involve reciprocal innervation.

Question 8

Spinal interneurons inhibit antagonist motor neurons in a process called

Accepted Answer

A)  reverberating circuits. 
B)  a crossed extensor reflex. 
C)  reciprocal inhibition. 
D)  a stretch reflex. 
E)  a tendon reflex. 
A)  reverberating circuits. 
B)  a crossed extensor reflex. 
C)  reciprocal inhibition. 
D)  a stretch reflex. 
E)  a tendon reflex.

Question 9

The _________separates the dura mater from the walls of the vertebral canal.

Accepted Answer

The answer of The _________separates the dura mater from the...

Question 10

The neural "wiring" of a single reflex is called an)___________

Accepted Answer

The answer of The neural "wiring" of a single reflex...

Question 11

Figure 12- 1 The Spinal Cord
Use Figure 12- 1 to answer the following questions:
-The flexor reflex

Accepted Answer

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

Question 12

What would happen if the dorsal root of a spinal nerve were completely transected?

Accepted Answer

The dorsal roots contain axons of sensor

Question 13

A complex, interwoven network of nerves is called an)__________

Accepted Answer

The answer of A complex, interwoven network of nerves is...

Question 14

As_______ the nerve approaches the knee, it divides into two branches, the fibular nerve and the tibial nerve.

Accepted Answer

A)  femoral 
B)  pudendal 
C)  brachial 
D)  sciatic 
E)  perineal 
A)  femoral 
B)  pudendal 
C)  brachial 
D)  sciatic 
E)  perineal

Question 15

Blood vessels traveling within the __________deliver oxygen and nutrients to the spinal cord.

Accepted Answer

The answer of Blood vessels traveling within the __________deliver oxygen...

Question 16

Figure 12- 1 The Spinal Cord
Use Figure 12- 1 to answer the following questions:
-What is the function of the structure labeled "14"?

Accepted Answer

A)  control of skeletal muscle 
B)  somatic motor control 
C)  visceral sensory processing 
D)  control of visceral effectors 
E)  somatic sensory processing 
A)  control of skeletal muscle 
B)  somatic motor control 
C)  visceral sensory processing 
D)  control of visceral effectors 
E)  somatic sensory processing

Question 17

The stretch reflex

Accepted Answer

A)  involves a receptor called the Golgi tendon organ. 
B)  is important in regulating muscle length. 
C)  is an example of a polysynaptic reflex. 
D)  is activated when a skeletal muscle lengthens. 
E)  both B and D 
A)  involves a receptor called the Golgi tendon organ. 
B)  is important in regulating muscle length. 
C)  is an example of a polysynaptic reflex. 
D)  is activated when a skeletal muscle lengthens. 
E)  both B and D

Question 18

Reflexes can be classified according to all of the following, except

Accepted Answer

A)  their development. 
B)  the complexity of the neural circuit. 
C)  the motor response. 
D)  where information processing occurs. 
E)  whether they are sensory or motor. 
A)  their development. 
B)  the complexity of the neural circuit. 
C)  the motor response. 
D)  where information processing occurs. 
E)  whether they are sensory or motor.

Question 19

Visceral reflexes provide a mechanism for control of the abdominal muscles

Accepted Answer

A) True 
 B)False

Question 20

The most complicated spinal reflexes are called________

Accepted Answer

intersegme

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

Cerebrospinal fluid flows within the

Figure 12- 1 The Spinal Cord Use Figure 12- 1 to answer the following questions: -The ventral rami form four major plexuses, including all of the following, except the_______ plexus.

Sometimes, when it is difficult to initiate a knee- jerk reflex by tapping the patellar tendon, a patient will be asked to voluntarily make a fist. Then the reflex will be easily evoked. What does this illustrate about the relation between voluntary and involuntary reflex movement?

The gray horns of the spinal cord contain mainly

The ______reflex complements the flexor reflex by activating contralateral muscles.

Figure 12- 2 Spinal Nerves Use Figure 12- 2 to answer the following questions: -Identify the structure labeled "6."

Figure 12- 2 Spinal Nerves Use Figure 12- 2 to answer the following questions: -All of the following are true of polysynaptic reflexes, except that they

Spinal interneurons inhibit antagonist motor neurons in a process called

The _________separates the dura mater from the walls of the vertebral canal.

The neural "wiring" of a single reflex is called an)___________

Figure 12- 1 The Spinal Cord Use Figure 12- 1 to answer the following questions: -The flexor reflex

What would happen if the dorsal root of a spinal nerve were completely transected?

A complex, interwoven network of nerves is called an)__________

As_______ the nerve approaches the knee, it divides into two branches, the fibular nerve and the tibial nerve.

Blood vessels traveling within the __________deliver oxygen and nutrients to the spinal cord.

Figure 12- 1 The Spinal Cord Use Figure 12- 1 to answer the following questions: -What is the function of the structure labeled "14"?

The stretch reflex

Reflexes can be classified according to all of the following, except

Visceral reflexes provide a mechanism for control of the abdominal muscles

The most complicated spinal reflexes are called________

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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