Neuro final

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created 1 year ago by Beeezz92
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updated 1 year ago by Beeezz92
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neurobiology
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1

What parts of the brain ultimately plan and coordinate complex motor activities?

A) cerebellum and basal nuclei

B) cerebrum and cerebellum

C) cerebrum, cerebellum, and basal nuclei

D) cerebrum and basal nuclei

A

2

Which of these body areas would you expect to have the smallest receptive fields?

A. Back and belly

B. Fingers and lips

C. Fingers and toes

D. Shoulder and back

B

3

A patient in his mid-50s calls you, complaining that he has pain in the upper chest wall, left arm, and hand. What medical problem should you assume he might have?

A. Heart attack.

B. Hypochondria.

C. Kidney stones.

D. Muscle strain from lifting heavy objects.

A

4

Which kind of afferent is more effective for conveying information about changes in ongoing stimulation?

A) Rapidly-adapting afferents

B) Slowly-adapting afferents

C) They are equally effective.

D) It depends on the stimulus.

A

5

The proprioceptive afferents can be destroyed by viral disease. What might be an acute effect of such a disruption?

A. Failing common tests for drunkenness

B. Only being able to walk while watching the feet

C. Needing to use excessive force to grip objects

D. Not being able to modulate the voice

E. All of the above

E

6

Which type of afferent is most likely to transmit information about the static position of the limbs?

A. Group Ia

B. Group Ib

C. Group II

D. All of these equally

C

7

The avian version of TRPV1 responds to heat but not to capsaicin. Why do some companies sell birdseed laced with capsaicin?

A. Birds enjoy the flavor of capsaicin.

B. Capsaicin improves the ability of birds to avoid noxious heat sources.

C. Squirrels will avoid the spicy birdseed, but birds will eat it.

C

8

If you lesion half the spinal cord, you will lose function below the site of the lesion. Specifically, what will you lose?

A. Tactile and proprioception on the opposite (contralateral) side of the body and pain on the same (ipsilateral) side

B. Tactile and proprioception on the ipsilateral side of the body and pain on the contralateral side

C. Tactile, proprioception, and pain on the contralateral side of the body

D. Tactile, proprioception, and pain on the ipsilateral side of the body

B

9

The anterior cingulate nucleus is sometimes lesioned in cancer patients to treat intractable pain. What is the most likely effect of this treatment?

A. The patients can feel the pain, but it doesn't bother them.

B. The patients can't feel pain or tactile information.

C. The patients feel the pain, and it bothers them, but they stop complaining about it.

A

10

Why might a patient who has lost a thumb feel sensation in her missing thumb when her face is touched? (Assumed it has been months since the amputation.)

A. Phantom Limb

B. Mirror Neurons

C. Amputee syndrome

A

11

Which kind of motor unit is preferentially stimulated in a sprinter?

(A) S

(B) FR

(C) FF

C

12

Which kind of motor unit is preferentially activated in a marathon runner?

(A) S

(B) FR

(C) FF

B

13

If you have degenerating alpha motor neurons, what will happen to the reflex?

(A) It will be weak.

(B) It will be stronger.

(C) Nothing.

A

14

After injury to motor cortex, the patient is generally paralyzed at first, but some function may gradually return. Which function would have the most difficulty returning?

(A) Driving

(B) Walking

(C) Writing

C

15

If a motor seizure starts by causing twitching in the finger and then goes on to the hand, and then to the arm, which structure will be affected next?

(A) Eyes

(B) Head

(C) Legs

(D) It will stop there.

B

16

What kind of deficit would you most expect in people with damage to area MT, which is in the dorsal stream?

(A) Difficulty in knowing when to cross the street to avoid oncoming cars

(B) Inability to pick ripe fruit

(C) Inability to recognize family members

A

17

Which of these symptoms would you not expect in a patient in the early stages of FTD?

(A) Memory loss

(B) Making inappropriate sexual comments

(C) Lethargy

(D) Difficulties managing finances

A

18

You are playing a video game. You know that the cheat code for this game is the Konami code. Which areas of cortex are active while you press this code?

(A) Prefrontal cortex.

(B) Motor cortex.

(C) Primary visual cortex.

(D) Somatosensory cortex.

(E) Inferior temporal cortex.

A

19

In a condition called hypothalamic hamartoma, the presence of disorganized cells near the hypothalamus cause seizures in this area. What might be a symptom of hypothalamic hamartoma?

(A) Intermittent bouts of aggression

(B) Memory loss

(C) Occasional periods of flat affect

(D) Paralysis

A

20

In the patient HM, most of the amygdala was removed in addition to most of the hippocampus. Which of these symptoms are most likely due to the loss of the amygdala?

(A) Ability to have the same conversation 10 times in a row

(B) Ability to learn the Tower of Hanoi task

(C) Dislike of mathematics

(D) Reluctance to ask to go to the bathroom.

D

21

Your presentation partner secretly hates public speaking and is really worried about the presentation. When he or she even thinks about it, his or her heart starts racing, and he or she starts sweating. What areas of the brain is your partner engaging?

(A) Amygdala

(B) Hypothalamus

(C) Prefrontal cortex

(D) Reticular formation

(E) All of the above

E

22

How would a patient with bilateral damage to the amygdala react to strangers?

(A) Neutrally

(B) With aggression

(C) With inappropriate friendliness

(D) With suspicion and fear

C

23

A situation could be so extreme that the amygdala cannot get out of the flight or fight situation. This could cause a person to have _.

A) Autism

B) ADD

C) Post-traumatic stress disorder (PTSD)

D) ADHD

C