Question 1

Which of the following fractures would be the least likely to cause a spinal cord injury?

Accepted Answer

A)  A fracture of vertebra C2 
B)  A fracture of vertebra C6 
C)  A fracture of vertebra T5 
D)  A fracture of vertebra T12 
E)  A fracture of vertebra L4 
A)  A fracture of vertebra C2 
B)  A fracture of vertebra C6 
C)  A fracture of vertebra T5 
D)  A fracture of vertebra T12 
E)  A fracture of vertebra L4 E

Question 2

If a bee sting on the right thigh causes a quick involuntary reaction of the right arm,this would be an example of a(n)__________ reflex.

Accepted Answer

A)  bilateral 
B)  intersegmental 
C)  withdrawal 
D)  crossed extensor 
E)  contralateral 
A)  bilateral 
B)  intersegmental 
C)  withdrawal 
D)  crossed extensor 
E)  contralateral B

Question 3

A ganglion is a _________.

Accepted Answer

A)  bundle of axons in the CNS 
B)  cluster of dendrites in either the CNS or the PNS 
C)  cluster of neurosomas in the PNS 
D)  bundle of axons in the PNS 
E)  cluster of neurosomas in the CNS 
A)  bundle of axons in the CNS 
B)  cluster of dendrites in either the CNS or the PNS 
C)  cluster of neurosomas in the PNS 
D)  bundle of axons in the PNS 
E)  cluster of neurosomas in the CNS C

Question 4

Which of the following is not a function associated with the spinal cord?

Accepted Answer

A)  Protect neurons in both the ascending and descending tracts 
B)  Mediate a reflex,such as the withdrawal of a hand from pain 
C)  Conduct sensory information up to the brain 
D)  Conduct motor information down the cord 
E)  Coordinate the alternating contraction of several muscle groups associated with locomotion 
A)  Protect neurons in both the ascending and descending tracts 
B)  Mediate a reflex,such as the withdrawal of a hand from pain 
C)  Conduct sensory information up to the brain 
D)  Conduct motor information down the cord 
E)  Coordinate the alternating contraction of several muscle groups associated with locomotion

Question 5

A patient with no sensation in the left thumb would most likley have nerve damage of the __________ spinal nerve.

Accepted Answer

A)  T1 
B)  T5 
C)  C5 
D)  C6 
E)  L3 
A)  T1 
B)  T5 
C)  C5 
D)  C6 
E)  L3

Question 6

A ganglion is a swelling along a nerve containing the cell bodies of peripheral neurons.

Accepted Answer

A) True 
 B)False

Question 7

Which of the following is comprised of anterior rami from C5-T1?

Accepted Answer

A)  Cervical plexus 
B)  Brachial plexus 
C)  Coccygeal plexus 
D)  Sacral plexus 
E)  Lumbar plexus 
A)  Cervical plexus 
B)  Brachial plexus 
C)  Coccygeal plexus 
D)  Sacral plexus 
E)  Lumbar plexus

Question 8

A reflex in which the sensory input and motor output are on opposite sides of the spinal cord,is called a(n)_________ reflex arc.

Accepted Answer

A)  intersegmental 
B)  contralateral 
C)  ipsilateral 
D)  polysynaptic 
E)  monosynaptic 
A)  intersegmental 
B)  contralateral 
C)  ipsilateral 
D)  polysynaptic 
E)  monosynaptic

Question 9

Which of the following sensory functions involves neurons in the posterior root ganglion?

Accepted Answer

A)  Smell 
B)  Hearing 
C)  Touch 
D)  Taste 
E)  Vision 
A)  Smell 
B)  Hearing 
C)  Touch 
D)  Taste 
E)  Vision

Question 10

Which of the following is contained within gray matter?

Accepted Answer

A)  Glial cells,axons of motor neurons,and Schwann cells 
B)  Glial cells and myelinated fibers 
C)  Neurosomas,dendrites,and proximal parts of axons of neurons 
D)  The distal part of axons of lower order motor neurons 
E)  Glial cells only 
A)  Glial cells,axons of motor neurons,and Schwann cells 
B)  Glial cells and myelinated fibers 
C)  Neurosomas,dendrites,and proximal parts of axons of neurons 
D)  The distal part of axons of lower order motor neurons 
E)  Glial cells only

Question 11

The flexor (withdrawal)reflex employs a ___________,which maintains a sustained contraction.

Accepted Answer

A)  parallel after-discharge circuit 
B)  diverging circuit 
C)  converging circuit 
D)  closed circuit 
E)  reverberating circuit 
A)  parallel after-discharge circuit 
B)  diverging circuit 
C)  converging circuit 
D)  closed circuit 
E)  reverberating circuit

Question 12

Voluntary motor impulses leave the spinal cord via the _________ of gray matter.

Accepted Answer

A)  anterior horn 
B)  posterior horn 
C)  anterior column 
D)  posterior column 
E)  lateral horn 
A)  anterior horn 
B)  posterior horn 
C)  anterior column 
D)  posterior column 
E)  lateral horn

Question 13

A __________ is a cordlike organ composed of numerous __________.

Accepted Answer

A)  nerve fiber;nerves 
B)  nerve fiber;axons 
C)  nerve;axons 
D)  nerve fiber;neurosomas 
E)  nerve;neurosomas 
A)  nerve fiber;nerves 
B)  nerve fiber;axons 
C)  nerve;axons 
D)  nerve fiber;neurosomas 
E)  nerve;neurosomas

Question 14

Somatic reflexes are responses of skeletal,smooth,and cardiac muscles.

Accepted Answer

A) True 
 B)False

Question 15

The middle layer of the meninges is called the __________.

Accepted Answer

A)  gray matter 
B)  white matter 
C)  dura mater 
D)  arachnoid mater 
E)  pia mater 
A)  gray matter 
B)  white matter 
C)  dura mater 
D)  arachnoid mater 
E)  pia mater

Question 16

The upper motor neurons that control skeletal muscles begin with a neurosoma in the __________.

Accepted Answer

A)  posterior horn of the spinal cord 
B)  anterior horn of the spinal cord 
C)  motor association cortex of the cerebrum 
D)  postcentral gyrus of the cerebrum 
E)  precentral gyrus of the cerebrum 
A)  posterior horn of the spinal cord 
B)  anterior horn of the spinal cord 
C)  motor association cortex of the cerebrum 
D)  postcentral gyrus of the cerebrum 
E)  precentral gyrus of the cerebrum

Question 17

There are __________ pairs of spinal nerves.

Accepted Answer

A)  12 
B)  24 
C)  31 
D)  35 
E)  62 
A)  12 
B)  24 
C)  31 
D)  35 
E)  62

Question 18

A nerve fiber is enclosed in its own fibrous sleeve called perineurium.

Accepted Answer

A) True 
 B)False

Question 19

Second-order neurons synapse with third-order neurons in the __________.

Accepted Answer

A)  thalamus 
B)  dorsal root ganglion 
C)  spinal cord 
D)  cerebral cortex 
E)  medulla oblongata 
A)  thalamus 
B)  dorsal root ganglion 
C)  spinal cord 
D)  cerebral cortex 
E)  medulla oblongata

Question 20

A dermatome is a nerve innervating a specific region in the skin.

Accepted Answer

A) True 
 B)False

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

Which of the following fractures would be the least likely to cause a spinal cord injury?

If a bee sting on the right thigh causes a quick involuntary reaction of the right arm,this would be an example of a(n)__________ reflex.

A ganglion is a _________.

Which of the following is not a function associated with the spinal cord?

A patient with no sensation in the left thumb would most likley have nerve damage of the __________ spinal nerve.

A ganglion is a swelling along a nerve containing the cell bodies of peripheral neurons.

Which of the following is comprised of anterior rami from C5-T1?

A reflex in which the sensory input and motor output are on opposite sides of the spinal cord,is called a(n)_________ reflex arc.

Which of the following sensory functions involves neurons in the posterior root ganglion?

Which of the following is contained within gray matter?

The flexor (withdrawal)reflex employs a ___________,which maintains a sustained contraction.

Voluntary motor impulses leave the spinal cord via the _________ of gray matter.

A __________ is a cordlike organ composed of numerous __________.

Somatic reflexes are responses of skeletal,smooth,and cardiac muscles.

The middle layer of the meninges is called the __________.

The upper motor neurons that control skeletal muscles begin with a neurosoma in the __________.

There are __________ pairs of spinal nerves.

A nerve fiber is enclosed in its own fibrous sleeve called perineurium.

Second-order neurons synapse with third-order neurons in the __________.

A dermatome is a nerve innervating a specific region in the skin.

Major Themes of Anatomy and Physiology

The Chemistry of Life

Cellular Form and Function

Genetics of Cellular Function

Histology

The Integumentary System

Bone Tissue

The Skeletal System

Joints

The Muscular System

Muscular Tissue

Nervous Tissue

The Brain and Cranial Nerves

The Autonomic Nervous System and Visceral Reflexes

Sense Organs

The Endocrine System

The Circulatory System: Blood

The Circulatory System: Heart

The Circulatory System: Blood Vessels and Circulation

The Lymphatic and Immune Systems

The Respiratory System

The Urinary System

Fluid, electrolyte, and Acidbase Balance

The Digestive System

Nutrition and Metabolism

The Male Reproductive System

The Female Reproductive System

Human Development and Aging

Atlas a General Orientation to Human Anatomy

Filters

A is a cordlike organ composed of numerous .