Exam 1 Corrections

Question 1

In the CNS, clusters of grey matter containing cell bodies are

Answer 1

nuclei

Question 2

In the PNS, clusters of grey matter containing cell bodies are

Answer 2

ganglia

Question 3

Bundles of axons and their myelin sheath in the CNS are

Answer 3

tracts

Question 4

Bundles of axons and their myelin sheaths in the PNS are

Answer 4

nerves

Question 5

The following are all major components of the brainstem except

Answer 5

cerebellum

Question 6

The right and left cerebral hemispheres are separated from each other by

Answer 6

longitudunal fissure

Question 7

The medulla oblongata is _______ to the cerebrum

Answer 7

caudal

Question 8

The gray matter of the cerebrum forms a surface layer called the _____ and deeper masses called _____ surrounded by white matter.

Answer 8

cortex, nuclei

Question 9

From superficial to deep, the meninges occur in which order

Answer 9

dura, arachnoid, pita

Question 10

A patient is experiencing a high fever, stiff neck, drowsiness, and intense headaches. A spinal tap showed bacteria and white blood cells in the CSF. This individual most likely has what condition?

Answer 10

meningitis

Question 11

Where are the cardiac, vasomotor, respiratory centers found?

Answer 11

medulla

Question 12

Degeneration of the neurons in which of the following structures leads to the muscle tremors associated w/ Parkinsons disease?

Answer 12

substantia nigra

Question 13

Where is the pons located?

Answer 13

superior colliculi

Question 14

Loss of equilibrium and motor coordination would most likely be related to a lesion in which structure?

Answer 14

cerebellum

Question 15

Nearly all the somatosensory input to the cerebrum passes by way of synapses in the

Answer 15

thalamus

Question 16

Sex drive, body temp. and food/water intake are regulated by which part of the brain?

Answer 16

hypothalamus

Question 17

A lesion in which structure would cause a person to have an erratic waking/sleeping cycle?

Answer 17

suprachiasmatic nucleus

Question 18

Planning, motivation, and social judgment are functions of the brain associated with which part of the cerebrum?

Answer 18

frontal lobe

Question 19

The great majority of which tracts pass through the corpus callosum?

Answer 19

commissural

Question 20

Where are the hippocampus and amygdala found?

Answer 20

limbic system

Question 21

A predominance of which waves in an EEG might indicate that a person is thinking about this question?

Answer 21

beta

Question 22

Short term memory is associated with the _______ whereas long term memory is associated with the ____.

Answer 22

hippocampus, cerebral cortex

Question 23

Destruction of the amygdala would mostly affect which of the following?

Answer 23

expression of emotional feelings

Question 24

the pyramidal cells of the precentral gyrus are called

Answer 24

upper motor neurons

Question 25

After a stroke, a patient complains about lack of sensitivity in her right hand. the stroke most likely affected which part of the brain?

Answer 25

postcentral gyrus in the left parietal lobe

Question 26

What is the largest of the cranial nerves and the most important sensory nerve of the face?

Answer 26

trigeminal

Question 27

Which cranial nerve innervates most of the viscera in the thoracic and abdominopelvic cavities?

Answer 27

vagus

Question 28

Propranolol, a beta blocker, is typically used to

Answer 28

decrease heart rate

Question 29

the binding of ______ to a nicotinic receptor of a muscle fiber will _____ it.

Answer 29

acetylcholine, excite

Question 30

Atropine is sometimes used to dilate the pupil for an eye exam. Which receptor would atropine block?

Answer 30

muscarinic receptor