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Flashcards in Neuro Deck (31)
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1

Basal ganglia input is primarily from the ________; most basal ganglia output is to the _______ via the________.
a. thalamus cortex thalamocortical pathways.
b. cortex ; cortex ; thalamus
c. cortex thalamus ; cortex

b. cortex ; cortex ; thalamus

2

Functions of the basal ganglia include all of the following except
Select one:
a. inhibition of unwanted movement
b. smoothing / refining of movements
c. postural control
d. direct input to LMNs for skilled fine movements

d. direct input to LMNs for skilled fine movements

3

The nucleus accumbens is functionally related to the __________ and receives input from the ___________.
Select one:
a. thalamus and basal ganglia
b. basal ganglia ; limbic system
c. cortex ; limbic system

b. basal ganglia ; limbic system

4

LMNs have their cell bodies
Select one:
a. within the spinal cord or brainstem
b. in the cortex
c. outside the spine

a. within the spinal cord or brainstem

5

A complete lesion to a LMN results in
Select one:
a. paralysis on the contralateral side of the body
b. paralysis on the ipsilateral side of the body
c. bilateral paresis

b. paralysis on the ipsilateral side of the body

6

A lesion to the arcuate fasciculus results in
Select one:
a. relatively good language comprehension
b. poor motor production of speech
c. Conduction aphasia
d. all of the above

d. all of the above

7

The direct motor pathway (i.e. pyramidal tract) is comprised of fibers from
Select one:
a. areas 4, 6 and 3-1-2
b. areas 4 and 6
c. areas 4, 6, 3-1-2 and 5-7

a. areas 4, 6 and 3-1-2

8

Decussation of the corticolspinal pathway occurs at the
Select one:
a. midbrain
b. pons
c. upper medulla
d. lower level of the medulla

d. lower level of the medulla

9

The internal capsule is
Select one:
a. inferior to the cerebral peduncles
b. superior to the corona radiata
c. superior to the cerebral peduncles

c. superior to the cerebral peduncles

10

The posterior limb of the internal capsule carries
Select one:
a. affective and emotional information
b. auditory and visual information
c. corticospinal fibers
d. a and b
e. b and c

e. b and c

11

Incoming sensory fibers from the body periphery cross at
Select one:
a. the lower medulla
b. various levels of the spine
c. don't cross

b. various levels of the spine

12

The lateral portion of the corticospinal tract carries
Select one:
a. crossed fibers
b. uncrossed fibers
c. sensory fibers only

a. crossed fibers

13

The right and left temporal lobes are connected by
Select one:
a. the body of the corpus callosum
b. anterior commissure
c. association fibers
d. inferior longitudinal fasciculus

b. anterior commissure

14

The corticobulbar tract originates in the cortex and terminates at various levels of the ______________and innervates the muscles _______________.
Select one:
a. brainstem ; for speech
b. spine ; of the arms, legs and trunk
c. internal capsule ; for speech

a. brainstem ; for speech

15

The medial geniculate body of thalamus is involved with
Select one:
a. audition
b. vision
c. motor pathways for the head and neck

a. audition

16

Functions of the thalamus include (mark all that apply)
Choose all that are correct
a. gross sensory interpretation
b. innervation of LMNs
c. sensory relay station
d. inhibition of movement
e. integration of sensory and motor information

a. gross sensory interpretation
c. sensory relay station
e. integration of sensory and motor information

17

A lesion to an UMN before the point of crossing (decussation) results in
Select one:
a. signs on the contralateral side of the body
b. Signs on the ipsilateral side of the body
c. an absence of reflexes

a. signs on the contralateral side of the body

18

Basal ganglia output is primarily inhibitory.
True
False

True

19

Although the cerebral hemispheres are relatively homologous, there are both anatomical and functional differences between the two cerebral hemispheres.
Select one:
True
False

True

20

The genu of the internal capsule carries both visual and auditory afferent fibers.
Select one:
True
False

False

21

Commissural fibers connect areas within the same hemisphere.
Select one:
True
False

False (association)

22

Upper motor neurons are referred to as peripheral nerves or the 'final common pathway.'
Select one:
True
False

False, LMN

23

What is the UMN of CN V responsible for?

exaggerated jaw jerk reflex

24

You have a weak breathy voice, right VF paralysiss, but you can change pitch (superioor laryngeal nerve is in tact so you know its not the SLN) is what lesion?

right recurrent laryngeal nerve

25

Where is lesion: paralysis of whole left side of face:

ipsilateral lesion to CN VII (Bell's Palsy)

26

Lesion? Tongue deviated to R on protrusion.

LMN of CN XII on R or UMN on the left of CN XII

27

Lesion? Inability to pucker, spread, compress lips on R?

UMN on the left for CN VII

28

Lesion? hypernasal speak, absent cough reflex

CN X

29

Lesion? Tongue deviates to L on protrusion w/ visible fasiculations

LMN of CN XII

30

Lesion? L hemiplegia and weak labial seal?

motor strip (lesion could affect face, larynx, speech, as well as legs and arms)
lesion in UMN (because of weakness)