Question 1

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

Accepted Answer

A) endoneurium. 
B) perineurium. 
C) aponeurium. 
D) metaneurium. 
E) subneurium. 
A) endoneurium. 
B) perineurium. 
C) aponeurium. 
D) metaneurium. 
E) subneurium.

Question 2

Figure 13-1 The Spinal Cord
Use Figure 13-1 to answer the following questions:
-Identify the structure labeled "4."

Accepted Answer

A) posterior gray column 
B) dorsal gray ganglion 
C) posterior white column 
D) posterior gray horn 
E) anterior gray horn 
A) posterior gray column 
B) dorsal gray ganglion 
C) posterior white column 
D) posterior gray horn 
E) anterior gray horn

Question 3

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

Accepted Answer

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

Question 4

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

Accepted Answer

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

Question 5

The outermost connective-tissue covering of nerves is the

Accepted Answer

A) endoneurium. 
B) endomysium. 
C) perineurium. 
D) epineurium. 
E) epimysium. 
A) endoneurium. 
B) endomysium. 
C) perineurium. 
D) epineurium. 
E) epimysium.

Question 6

Figure 13-1 The Spinal Cord
Use Figure 13-1 to answer the following questions:
-Identify the structure labeled "1."

Accepted Answer

A) anterior white column 
B) lateral white column 
C) lateral white horn 
D) median commissure 
E) posterior white column 
A) anterior white column 
B) lateral white column 
C) lateral white horn 
D) median commissure 
E) posterior white column

Question 7

The dorsal 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 8

Spinal interneurons inhibit antagonist motor neurons in a process called

Accepted Answer

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

Question 9

The spinal cord continues to elongate until about age

Accepted Answer

A) 20 years. 
B) 10 years. 
C) 4 years. 
D) 6 months. 
E) 2 months. 
A) 20 years. 
B) 10 years. 
C) 4 years. 
D) 6 months. 
E) 2 months.

Question 10

Figure 13-2 Spinal Nerves
Use Figure 13-2 to answer the following questions:
-Identify the structure labeled "4."

Accepted Answer

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

Question 11

________ reflexes activate skeletal muscles.(Note: Be sure to capitalize the first letter of your answer).

Accepted Answer

The answer of ________ reflexes activate skeletal muscles.(Note: Be sure...

Question 12

Figure 13-1 The Spinal Cord
Use Figure 13-1 to answer the following questions:
-What is the function of the structure labeled "12"?

Accepted Answer

A) control of skeletal muscle 
B) somatic sensory receiving 
C) visceral sensory receiving 
D) control of visceral effectors 
E) ascending pathway 
A) control of skeletal muscle 
B) somatic sensory receiving 
C) visceral sensory receiving 
D) control of visceral effectors 
E) ascending pathway

Question 13

The ventral rami of spinal nerves C5 to T1 contribute fibers to the ________ plexus.

Accepted Answer

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

Question 14

A(n)________ reflex has at least one interneuron placed between the sensory and motor neurons.

Accepted Answer

The answer of A(n)________ reflex has at least one interneuron...

Question 15

The ventral 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 16

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 17

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

Accepted Answer

The answer of The ________ separates the dura mater from...

Question 18

Figure 13-2 Spinal Nerves
Use Figure 13-2 to answer the following questions:
-Identify the structure labeled "8."

Accepted Answer

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

Question 19

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

Accepted Answer

A) lead to skeletal muscle weakness or paralysis. 
B) interfere with position sense. 
C) mainly interfere with crude touch and temperature sense. 
D) block autonomic regulation. 
E) affect visceral motor function. 
A) lead to skeletal muscle weakness or paralysis. 
B) interfere with position sense. 
C) mainly interfere with crude touch and temperature sense. 
D) block autonomic regulation. 
E) affect visceral motor function.

Question 20

The white matter of the spinal cord is mainly

Accepted Answer

A) unmyelinated axons. 
B) neuroglia. 
C) Schwann cells. 
D) myelinated and unmyelinated axons. 
E) nodes of Ranvier. 
A) unmyelinated axons. 
B) neuroglia. 
C) Schwann cells. 
D) myelinated and unmyelinated axons. 
E) nodes of Ranvier.

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

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

Figure 13-1 The Spinal Cord Use Figure 13-1 to answer the following questions: -Identify the structure labeled "4."

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

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

The outermost connective-tissue covering of nerves is the

Figure 13-1 The Spinal Cord Use Figure 13-1 to answer the following questions: -Identify the structure labeled "1."

The dorsal root of a spinal nerve contains

Spinal interneurons inhibit antagonist motor neurons in a process called

The spinal cord continues to elongate until about age

Figure 13-2 Spinal Nerves Use Figure 13-2 to answer the following questions: -Identify the structure labeled "4."

________ reflexes activate skeletal muscles.(Note: Be sure to capitalize the first letter of your answer).

Figure 13-1 The Spinal Cord Use Figure 13-1 to answer the following questions: -What is the function of the structure labeled "12"?

The ventral rami of spinal nerves C5 to T1 contribute fibers to the ________ plexus.

A(n)________ reflex has at least one interneuron placed between the sensory and motor neurons.

The ventral root of a spinal nerve contains

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 ________ separates the dura mater from the walls of the vertebral canal.

Figure 13-2 Spinal Nerves Use Figure 13-2 to answer the following questions: -Identify the structure labeled "8."

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

The white matter of the spinal cord is mainly

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 Axial Skeleton

The Appendicular Skeleton

Articulations

Muscle Tissue

The Muscular System

Neural Tissue

The Brain and Cranial Nerves

Neural Integration I: Sensory Pathways and the Somatic Nervous System

Neural Integration Ii: the Autonomic Nervous System and

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 and Energetics

The Urinary System

Fluid, electrolyte, and Acid-Base Balance

The Reproductive System

Development and Inheritance

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