Question 1

The spinal cord and spinal nerves are exclusively responsible for some reflexes.

Accepted Answer

A) True 
 B)False

Question 2

Which spinal nerves contribute to the brachial plexus?

Accepted Answer

A) S1-Co1 
B) L1-L5 
C) C5-T1 
D) L4-S4 
E) C1-C5 
A) S1-Co1 
B) L1-L5 
C) C5-T1 
D) L4-S4 
E) C1-C5

Question 3

The lateral horns of the spinal cord contain

Accepted Answer

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

Question 4

The _______ nuclei within the gray matter of the spinal cord send nerve impulses to skeletal muscles.

Accepted Answer

A) sensory 
B) visceral sensory 
C) somatic sensory 
D) autonomic motor 
E) somatic motor 
A) sensory 
B) visceral sensory 
C) somatic sensory 
D) autonomic motor 
E) somatic motor

Question 5

Spinal nerves exit the vertebral canal and travel through an intervertebral foramen above or below the vertebra of the same number.The exception is

Accepted Answer

A) C4. 
B) C8. 
C) T1. 
D) L5. 
E) S8. 
A) C4. 
B) C8. 
C) T1. 
D) L5. 
E) S8.

Question 6

-This figure shows a cross section of the spinal cord.What structure does number 2 indicate?

Accepted Answer

A) Lateral horn 
B) Anterior horn 
C) Gray commissure 
D) Posterior horn 
E) Posterior funiculus 
A) Lateral horn 
B) Anterior horn 
C) Gray commissure 
D) Posterior horn 
E) Posterior funiculus

Question 7

Following an injury to his arm,a patient complains that he has no sensations from the thumb,index finger,middle finger,and part of the ring finger.You suspect that he has damaged the

Accepted Answer

A) median nerve. 
B) radial nerve. 
C) musculocutaneous nerve. 
D) ulnar nerve. 
E) axillary nerve. 
A) median nerve. 
B) radial nerve. 
C) musculocutaneous nerve. 
D) ulnar nerve. 
E) axillary nerve.

Question 8

The tapered,conical inferior end of the spinal cord is called the conus

Accepted Answer

A) finalis. 
B) medullaris. 
C) equine. 
D) caudalis. 
A) finalis. 
B) medullaris. 
C) equine. 
D) caudalis.

Question 9

The thin strand of pia mater that helps to anchor the spinal cord to the coccyx is the

Accepted Answer

A) conus medullaris. 
B) cervical enlargement. 
C) terminus coccyx. 
D) filum terminale. 
E) coccygeal tendon. 
A) conus medullaris. 
B) cervical enlargement. 
C) terminus coccyx. 
D) filum terminale. 
E) coccygeal tendon.

Question 10

Which space associated with the spinal cord meninges contains areolar connective tissue,blood vessels,and adipose connective tissue?

Accepted Answer

A) Subarachnoid space 
B) Epidural space 
C) Central canal 
D) Subdural space 
E) Epiarachnoid space 
A) Subarachnoid space 
B) Epidural space 
C) Central canal 
D) Subdural space 
E) Epiarachnoid space

Question 11

-This figure shows spinal nerve branches.What structure does number 1 indicate?

Accepted Answer

A) Anterior ramus 
B) Posterior ramus 
C) Rami communicantes 
D) Sympathetic trunk ganglion 
E) Posterior root ganglion 
A) Anterior ramus 
B) Posterior ramus 
C) Rami communicantes 
D) Sympathetic trunk ganglion 
E) Posterior root ganglion

Question 12

A typical spinal cord in an adult is

Accepted Answer

A) 24-26 inches long. 
B) 12-14 inches long. 
C) 8-10 inches long. 
D) 16-18 inches long. 
E) 20-24 inches long. 
A) 24-26 inches long. 
B) 12-14 inches long. 
C) 8-10 inches long. 
D) 16-18 inches long. 
E) 20-24 inches long.

Question 13

The anterior ramus of a typical spinal nerve innervates the

Accepted Answer

A) deep muscles of the back and the skin of the back. 
B) major thoracic and abdominal organs. 
C) abdominal wall. 
D) anterior and lateral trunk and the limbs. 
E) special senses. 
A) deep muscles of the back and the skin of the back. 
B) major thoracic and abdominal organs. 
C) abdominal wall. 
D) anterior and lateral trunk and the limbs. 
E) special senses.

Question 14

The Golgi tendon reflex

Accepted Answer

A) helps to overcome pain. 
B) aids in sending sensory information to the muscles. 
C) prevents skeletal muscles from tensing excessively. 
D) prevents muscles from contracting. 
E) helps to gain balance through a complex series of muscular contractions. 
A) helps to overcome pain. 
B) aids in sending sensory information to the muscles. 
C) prevents skeletal muscles from tensing excessively. 
D) prevents muscles from contracting. 
E) helps to gain balance through a complex series of muscular contractions.

Question 15

The largest and longest nerve in the body is the _________ nerve.

Accepted Answer

A) femoral 
B) radial 
C) sciatic 
D) obturator 
E) saphenous 
A) femoral 
B) radial 
C) sciatic 
D) obturator 
E) saphenous

Question 16

Late one night you are leaving the science building during a massive snowstorm.As you approach your car,your right foot suddenly slips on a patch of ice.Your left leg immediately stiffens as you try to regain your balance.The reflex action you relied upon is most correctly known as a(n)

Accepted Answer

A) multisynaptic reflex. 
B) unilateral reflex. 
C) ipsilateral reflex. 
D) contralateral reflex. 
E) None of the choices is correct. 
A) multisynaptic reflex. 
B) unilateral reflex. 
C) ipsilateral reflex. 
D) contralateral reflex. 
E) None of the choices is correct.

Question 17

-This figure shows the spinal cord and spinal nerves.What structure does number 2 indicate?

Accepted Answer

A) Dura mater 
B) Filum terminale 
C) Cauda equina 
D) Conus medullaris 
E) Posterior rootlets 
A) Dura mater 
B) Filum terminale 
C) Cauda equina 
D) Conus medullaris 
E) Posterior rootlets

Question 18

Which of these spinal nerve counts is incorrect?

Accepted Answer

A) Thoracic nerves = 8 pairs 
B) Cervical nerves = 8 pairs 
C) Lumbar nerves = 5 pairs 
D) Sacral nerves = 5 pairs 
E) Coccygeal nerves = 1 pair 
A) Thoracic nerves = 8 pairs 
B) Cervical nerves = 8 pairs 
C) Lumbar nerves = 5 pairs 
D) Sacral nerves = 5 pairs 
E) Coccygeal nerves = 1 pair

Question 19

-This figure shows a cross section of the spinal cord.What structure does number 3 indicate?

Accepted Answer

A) Posterior funiculus 
B) White commissure 
C) Anterior funiculus 
D) Lateral funiculus 
E) Anterior median fissure 
A) Posterior funiculus 
B) White commissure 
C) Anterior funiculus 
D) Lateral funiculus 
E) Anterior median fissure

Exam 16: Spinal Cord and Spinal Nerves

The spinal cord and spinal nerves are exclusively responsible for some reflexes.

Which spinal nerves contribute to the brachial plexus?

The lateral horns of the spinal cord contain

The _______ nuclei within the gray matter of the spinal cord send nerve impulses to skeletal muscles.

Spinal nerves exit the vertebral canal and travel through an intervertebral foramen above or below the vertebra of the same number.The exception is

-This figure shows a cross section of the spinal cord.What structure does number 2 indicate?

Following an injury to his arm,a patient complains that he has no sensations from the thumb,index finger,middle finger,and part of the ring finger.You suspect that he has damaged the

The tapered,conical inferior end of the spinal cord is called the conus

The thin strand of pia mater that helps to anchor the spinal cord to the coccyx is the

Which space associated with the spinal cord meninges contains areolar connective tissue,blood vessels,and adipose connective tissue?

-This figure shows spinal nerve branches.What structure does number 1 indicate?

A typical spinal cord in an adult is

The anterior ramus of a typical spinal nerve innervates the

The Golgi tendon reflex

The largest and longest nerve in the body is the _________ nerve.

Late one night you are leaving the science building during a massive snowstorm.As you approach your car,your right foot suddenly slips on a patch of ice.Your left leg immediately stiffens as you try to regain your balance.The reflex action you relied upon is most correctly known as a(n)

-This figure shows the spinal cord and spinal nerves.What structure does number 2 indicate?

Which of these spinal nerve counts is incorrect?

-This figure shows a cross section of the spinal cord.What structure does number 3 indicate?

A First Look at Anatomy

The Cell: Basic Unit of Structure and Function

Embryology

Tissue Level of Organization

Integumentary System

Cartilage and Bone

Axial Skeleton

Appendicular Skeleton

Articulations

Muscle Tissue and Organization

Axial Muscles

Appendicular Muscles

Surface Anatomy

Nervous Tissue

Brain and Cranial Nerves

Pathways and Integrative Functions

Autonomic Nervous System

Senses: General and Special

Endocrine System

Blood

Heart

Vessels and Circulation

Lymphatic System

Respiratory System

Digestive System

Urinary System

Reproductive System

Filters