Test 2 Quizes

Question 1

Which of the following ranges of spinal nerves typically contributes to the brachial plexus?

Answer 1

C5-T1

Question 2

The sympathetic division of the autonomic nervous system is ___________________ in origin

Answer 2

Thoracolumbar

Question 3

The dural fold that projects into the space between the cerebral hemispheres and the cerebellum is called the ___________________.

Answer 3

Tentorium Cerebelli

Question 4

The epidural space is located directly between the ______________ and the ____________________.

Answer 4

Cranial bone, dura mater

Question 5

The lens of the human eye focuses light on the retina by ___________________________.

Answer 5

Changing shape

Question 6

The primary somatosensory cortex is located on the surface of the _____________________________.

Answer 6

Postcentral gyrus

Question 7

From which plexus does the obturator nerve arise?

Answer 7

Lumbar

Question 8

Ganglionic neurons innervate such things as __________________________________

Answer 8

Cardiac, smooth, adipose muscle, and glands

Question 9

The cranial nerve that innervates the muscles of mastication is _________________.

Answer 9

Trigeminal (V)

Question 10

Which of the following regions of the cochlea specifically translates bass (low frequency) sounds?

Answer 10

Furthest away from tympanic membrane

Question 11

Which of the following is the location on the retina that introduces a blind spot into the visual field?

Answer 11

Optic disc

Question 12

Which of the following nerves innervates muscles that dorsiflex at the ankle (“foot off the gas”)?

Answer 12

Deep fibular

Question 13

After suffering a stroke, Mary finds that she cannot move her left arm. This would suggest that the stroke damage is in the area of the _____________________ lobe

Answer 13

Right frontal

Question 14

Which of the following anatomical sequences is correct?

Answer 14

Tympanic membrane – malleus – incus – stapes – oval window – cochlea

Question 15

Sleep and wakefulness/consciousness are controlled by neurons in the _________________________

Answer 15

Midbrain

Question 16

The lateral and third ventricle are linked by a passageway called the ________________________.

Answer 16

Interventricular foramen

Question 17

Which of the following muscles would you expect to be innervated by the musculocutaneous nerve as a terminal branch of the brachial plexus?

Answer 17

Biceps Brachii

Question 18

Which of the following cranial nerves is sensory ONLY

Answer 18

Vestibulocochlear (VIII)

Question 19

Which of the following types of neuroglia functions as an important component of the blood-brain barrier?

Answer 19

Astrocytes

Question 20

The sensations of smell, taste, vision, balance and hearing are initially sensed by receptors called _______________________.

Answer 20

Special sensory receptors

Question 21

By definition, the brain and spinal cord together are considered to be the _________________________________.

Answer 21

CNS

Question 22

Which of the following accurately describes the role of myelin in the central nervous system?

Answer 22

“Insulates” axons increasing the speed of impulse conduction

Question 23

How many pairs of spinal nerves arise from the cervical region of the spinal cord?

Answer 23

8

Question 24

At which of the following vertebral levels does the spinal cord typically taper to an end as the conus medullaris?

Answer 24

L1

Question 25

The outermost of the meningeal coverings of the spinal cord is the

Answer 25

Dura mater

Question 26

Which of the following accurately describes the reason for the existence of cervical and lumbar enlargements in the spinal cord?

Answer 26

Enlargements are regions of the cord that contain more neurons for innervation of extremities

Question 27

Which of the following structural components of a neuron typically function as the “receiving end” for information coming to the neuronal cell body?

Answer 27

Dendrites