Quiz Questions From Quizzes Flashcards

1
Q

A 25 y/o has damage to the frontal lobes. What would be expected movements related deficits?

A

Difficulty initiating voluntary movements

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2
Q

T or F: in addition to the role in movement, the basal ganglia play a role in cognition?

A

True

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3
Q

Akinesia, bradykinesia, rigidity, tremor, postural instability, freezing, shuffled gait, forward flexed posture are all characteristics of which disorder?

A

Parkinson’s

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4
Q

Dysmetria of the right hand is either overshooting or undershooting of the target during reaching, result from lesions of the _______ cerebellum in pendulous tremor as the Brian trie to correct the movement?

A

Right lateral

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5
Q

What motor association corticies is most active when performing coordinated bilateral movements or complex sequential movements?

A

Supplemental Motor cortex

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6
Q

What muscle contraction is always abnormal and is caused by degeneration of the LMN?

A

Fibrillations

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7
Q

A patient suffers a lesion of the corticospinal tract. What is an example of something that would be affected?

A

Typing a letter

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8
Q

The efference copy of the body is a “snapshot” of the LMN and is formed by the cerebellum as part of the the error correcting function. What tract is responsible for collecting the information from the spinal cord?

A

Ventral spinocerebellar tract

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9
Q

At what point do most of the axons of the lateral cortical spinal pathway cross to the opposite side of the CNS?

A

In the caudal medulla

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10
Q

What is the function of the vermis?

A

Controls axial musculature vie the medial pathways

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11
Q

T or F: the cerebellum provides conscious awareness of proprioceptive information?

A

False

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12
Q

The medial pathways are in general concerned with ___?

A

Control of movement of the postural and girdle muscles

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13
Q

A pt. Has an injury to the medial portion of the primary motor cortex. Which part of the body maps to this region of the cortex?

A

Lower limbs

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14
Q

Which pool of motor neurons do the UMN of the lateral corticospinal tracts typically innervate or terminal on the ____ motor neuron pools. These pools innervate the _____ muscle of the body?

A

Lateral; distal muscles

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15
Q

The reticulospinal tract originates from the _____ and _____ decussate as it descends?

A

Pons and medulla : does not

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16
Q

The lateral Vestibulospinal tract originates from the medial and inferior vestibular nuclei in the pons, it descends ______, and terminates at ______.

A

Ipsilaterally, all spinal cord levels

17
Q

Where is the origin of the rubrospinal tract?

A

Red nucleus in the midbrain

18
Q

An alpha motor neuron and all the muscle fibers innervated by it make up the elementary component of motor control called….?

A

Motor unit

19
Q

Does the basal ganglia coordinate and correct complex movements?

A

No. That’s the cerebellums job

20
Q

The vermis of the cerebellum is associated with….?

A

Coordination and control of axial muscles

21
Q

Descending axons from the cerebral cortex are located in what section of the brainstem?

A

Anterior (basilar)

22
Q

The posterior (tectum) section of the brainstem contains which of the following?

A

Inferior colliculus

23
Q

Regulation of vital functions, awareness, and analgesia by activation of inhibitory interneurons in the ventral horn are the function of what?

A

Reticular formation

24
Q

The part of the brainstem that supplies dopamine the cerebral areas involved in motivation and decision making is what?

A

Ventral tegmental area

25
Q

What part of the brainstem produces acetylcholine?

A

Pedunculopontine nucleus

26
Q

What neurotransmitter produced by the midbrain raphe nuclei has major effects on mood?

A

Serotonin

27
Q

Which of the following hypothalamic nuclei is responsible for suppressing the activity of the raphe nuclei, locus coeruleus and other neurons that mediate wakeful cortical states, thereby inducing sleep?

A

Ventrolateral preoptic nucleus

28
Q

Where are the motor nuclei located for Crain all nerves X?

A

Dorsal cadual medulla

29
Q

What is a function of the Edinger-Westphalia parasympathetic nucleus of the oculomotor nerve?

A

Contral of the pupillary sphincter and the ciliary muscle

30
Q

What are controlled by the oculomotor nerve?

A

Muscles of the eye except the superior oblique

31
Q

What is functionally divided into 3 nuclei; the mesencephalic, the chief sensory, and the spinal sensory?

A

The trigeminal complex

32
Q

First order neurons conveying discriminative touch fro the face synapse where?

A

Principal sensory nucleus of the trigeminal nerve

33
Q

The temporal is, ,medial nad lateral pterygoid, and mass ether are innervated by what nerve?

A

Trigeminal

34
Q

What neurotransmitter is involved in regulating the waking state?

A

Serotonin, dopamine, orexin

35
Q

What nerve innervated the muscles that close the eye, move the lips, produce facial muscles, And lacrimal glands

A

Facial nerve

36
Q

AN individual has a lesion in the right nucleus of cranial nerve 6. WHat would be difficult for the right eye?

A

Looking laterally

37
Q

Elevation of the pharynx in swallowing is driven by what nuclei?

A

Nucleus ambiguous

38
Q

A drug suppresses the activity of the sympathetic nervous system. If the person should take a trip moving 4 time zones, will he be able to rapidly acclimate to the new time?

A

No. Stimulation of the pineal glans depends on the sympathetic nervous system.

39
Q

A “wakeful” cortical state is defined by EEG waveforms. Wake appears as ______ waves corresponding to columns of neurons in the cortex firing _____.

A

High frequency, low amplitude; separately (desynchronized)