Wednesday, February 15, 2012

ch13



Part A
________ reflexes activate skeletal muscles.

ANSWER:

Somatic
Correct

 
Chapter 13 Multiple Choice Question 7

Part A
Blood vessels that supply the spinal cord run along the surface of the
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 13

Part A
The dorsal root of a spinal nerve contains
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 4

Part A
The spinal cord consists of five regions and ________ segments.
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 44

Part A
Compared to the vertebral column, the spinal cord is
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 3

Part A
The ________ is a strand of fibrous tissue that provides longitudinal support as a component of the coccygeal ligament.
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 14

Part A
The ventral root of a spinal nerve contains
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 60

Part A
The subdural space lies between
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 12

Part A
The dorsal root ganglia mainly contain
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 42

Part A
The white matter of the spinal cord is mainly
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 59

Part A
The epidural space contains
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 61

Part A
The layer of the meninges in direct contact with the spinal cord is the
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 58

Part A
Cerebrospinal fluid flows within the
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 16

Part A
A dorsal and ventral root of each spinal segment unite to form a
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 47

Part A
Which of the following is true regarding an epidural block?
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 67

Part A
Samples of CSF for diagnostic purposes are normally obtained by placing the tip of a needle in the
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 69

Part A
In an adult, the conus medullaris is found at about
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 6

Part A
The specialized membranes that surround the spinal cord are termed the
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 15

Part A
Spinal nerves are
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 41

Part A
The tough, fibrous, outermost covering of the spinal cord is the
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 46

Part A
In meningitis,
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 5

Part A
The spinal cord continues to elongate until about age
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 20

Part A
Which of the following associations is incorrect?
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 45

Part A
After age ________ the vertebral column continues to elongate, but the spinal cord itself does not.
ANSWER:


Correct

 
Chapter 13 Short Answer Question 12

Part A
The dura mater tapers inferiorly to form the ________.

ANSWER:

coccygeal ligament
Correct

 
Chapter 13 Short Answer Question 15

Part A
The ________ separates the dura mater from the walls of the vertebral canal.

ANSWER:

epidural space
Correct

 
Chapter 13 Short Answer Question 17

Part A
During the procedure known as a(n) ________, a needle is inserted into the subarachnoid space in the inferior lumbar region.
ANSWER:

spinal tap
Correct

 
Chapter 13 True/False Question 4

Part A
After age 4 the vertebral column continues to elongate, but the spinal cord does not.
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 71

Part A
Mary is in an automobile accident and suffers a spinal cord injury. She has lost feeling in her lower body. Her doctor tells her that swelling is compressing a portion of her spinal cord. Which part of her cord is likely to be compressed?
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 76

Part A

Use the figure to answer the following question:

What is the function of the structure labeled "14"?
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 10

Part A
The white matter of the spinal cord contains
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 48

Part A
Somatic motor neurons in the spinal cord control all of the following muscles, except those that
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 63

Part A
The posterior horns of the spinal cord contain mainly
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 2

Part A
Enlargements of the spinal cord occur
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 9

Part A
Axons crossing from one side of the spinal cord to the other within the gray matter are found in the
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 1

Part A
In the spinal cord, white matter is separated into ascending and descending tracts organized as
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 74

Part A

Use the figure to answer the following question:

What is the function of the structure labeled "12"?
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 75

Part A

Use the figure to answer the following question:

Where do somatic motor neurons reside?
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 64

Part A
The anterior horns of the spinal cord contain mainly
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 70

Part A
Bill contracts a viral disease that destroys cells in the posterior gray horns in his spinal cord. As a result, which of the following would you expect?
ANSWER:


Correct

 
Reading Quiz - Chapter 13 Question 4
Part A
The gray horns of the spinal cord contain __________.
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 62

Part A
The gray horns of the spinal cord contain mainly
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 57

Part A
A viral disease that destroys the cells of the anterior gray horn will
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 28

Part A
The ventral rami of spinal nerves C5 to T1 contribute fibers to the ________ plexus.
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 21

Part A
The ________ of each spinal nerve innervates the skin and muscles of the back.
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 54

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


Correct

 
Chapter 13 Multiple Choice Question 11

Part A
The outermost connective-tissue covering of nerves is the
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 66

Part A
If the dorsal root of a spinal nerve is severed,
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 83

Part A

Use the figure to answer the following question:

Identify the structure labeled "8."
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 22

Part A
Muscles of the neck and shoulder are innervated by spinal nerves from the ________ region.
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 81

Part A

Use the figure to answer the following question:

Identify the structure labeled "5."
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 27

Part A
The ________ nerve, which arises in the cervical plexus, innervates the diaphragm.
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 29

Part A
In which plexus does the ulnar nerve arise?
ANSWER:


Correct

 
Reading Quiz - Chapter 13 Question 5
Part A
The region of the body surface monitored by a pair of spinal nerves is known as a(n) __________.
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 49

Part A
The layer of connective tissue that surrounds individual axons within a peripheral nerve is termed the
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 51

Part A
In the condition ________, a virus infects dorsal root ganglia, causing a painful rash whose distribution corresponds to that of the affected sensory nerves as seen in their dermatomes.
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 72

Part A
The brachial plexus gives rise to all of the following nerves, except the
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 17

Part A
The preganglionic fibers that connect a spinal nerve with an autonomic ganglion in the thoracic and lumbar region of the spinal cord form the
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 18

Part A
The postganglionic fibers that connect an autonomic ganglion in the thoracic or lumbar region with the spinal nerve are
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 19

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


Correct

 
Chapter 13 Multiple Choice Question 23

Part A
Spinal nerves from the sacral region of the cord innervate the ________ muscles.
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 24

Part A
The ________ innervates the ventrolateral body surface, structures in the body wall, and the limbs.
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 26

Part A
Each of the following nerves originates in the lumbar plexus, except the ________ nerve.
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 43

Part A
The layer of connective tissue that surrounds a fascicle within a peripheral nerve is the
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 53

Part A
The ventral rami form four major plexuses, including all of the following, except the ________ plexus.
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 55

Part A
As the ________ nerve approaches the knee, it divides into two branches, the fibular nerve and the tibial nerve.
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 56

Part A
The obturator nerve is distributed to the
ANSWER:


Correct

 
Chapter 13 Short Answer Question 18

Part A
The nerve crucial for breathing that originates within the cervical plexus is called the ________ nerve.

ANSWER:

phrenic
Correct

 
Chapter 13 Multiple Choice Question 31

Part A
Reflexes can be classified according to all of the following, except
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 33

Part A
The stretch reflex
ANSWER:


Correct

 
Chapter Test - Chapter 13 Question 14
Part A
A reflex arc always includes a(n) __________.
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 30

Part A
All of the following are true of neural reflexes, except that they
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 32

Part A
Reflexes based on synapses formed during development are ________ reflexes.
ANSWER:


Correct

 
Chapter 13 True/False Question 1

Part A
Visceral reflexes provide a mechanism for control of the abdominal muscles.
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 35

Part A
The reflex that prevents a muscle from exerting too much tension is the ________ reflex.
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 68

Part A
In which of the following would the delay between stimulus and response be greater?
ANSWER:


Correct

 
Chapter 13 Multiple Choice Question 38

Part A
Spinal interneurons inhibit antagonist motor neurons in a process called
ANSWER:


Correct

 
Chapter 13 Short Answer Question 7

Part A
The most complicated spinal reflexes are called ________.

ANSWER:

intersegmental reflex arcs
Answer Requested

 
Chapter 13 Multiple Choice Question 50

Part A
Which of the following is not true about a positive Babinski reflex?
ANSWER:


Correct

 
Chapter 13 Short Answer Question 13

Part A
The condition in which a person loses all feeling and movement of the arms and legs due to spinal cord injury is termed ________.

ANSWER:

quadriplegia
Correct