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CNS > Final > Flashcards

Final Flashcards

1
Q

What is NOT part of the epithalamus?

A

Reticular Nucleus

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2
Q

How many functional components are in the brainstem?

A

Seven

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3
Q

Parallel fibers come from which of the following?

A

Granule cells

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4
Q

What is the most rostral part of the CNS

A

Telencephalon

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5
Q

Which transmitter influences movement?

A

Acetylcholine

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6
Q

Which bundle of nerve fibers contains the central branches of the primary sensory neurons that provide for general sensation (not taste) from the posterior third of the tongue?

A

Spinal trigeminal tract

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7
Q

The parasympathetic preganglionic neurons to the heart are located in?

A

Dorsal Motor Nucleus of the Vagus

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8
Q

Which cerebellar pathway has fibers that cross?

A

Anterior Spinocerebellar

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9
Q

A receptor that monitors events within the body is called?

A

Enteroceptor

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10
Q

Where are the cell bodies of the neurons whose axons form the olfactory nerve?

A

In the olfactory bulb

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11
Q

Which nucleus is in the midline?

A

Raphe

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12
Q

Where are descending upper motor fibers found?

A

All of the above

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13
Q

Why are the neurons of the olfactory epithelium unique?

A

They are the only neurons that continue to be produced and are regularly replaced throughout adult life

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14
Q

Which crainal nerve carries taste sensation from the back of the throat, including epiglottis?

A

Vagus

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15
Q

Which functional component do the trochlear, oculomotor, and hypoglossal nerves have in common?

A

GSE

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16
Q

The pelvic splanchnic nerves are composed of ____ fibers

A

Parasympathetic preganglionic

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17
Q

Which fiber is stimulated by stretching the muscle spindle?

A

Gamma

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18
Q

How much cerebral spinal fluid is flowing through the ventricles, subarachnoid space and cisterns at any given time?

A

150mL

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19
Q

Which pair of nerves innervate the tensor tympani and stapedius muscles?

A

Trigeminal and Facial

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20
Q

Where is the spiral organ located?

A

Cochlear duct

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21
Q

If a dye, which is a very large molecule, is administered intervalnously, it will strain neurons in what location?

A

Circumventricular organs

22
Q

The vestibular system is connected ipsilatterally with which part of the cerebellum?

A

Vermis

23
Q

Which are derivatives of neural crest cells?

A

Glial cells of the CNS

24
Q

The cerebral aqueduct is located in the ____?

A

Midbrain

25
Q

Which dermatome is located on the upper limb?

A

C7

26
Q

Some mitral cell axons cross at the ?

A

Anterior commissure

27
Q

Where are the lower motor neurons that innervate the hand located?

A

Intermediolateral nucleus

28
Q

The posterior spinocerebellar tract originates from which nucleus?

A

Dorsal thoracic (Clarke’s)

29
Q

Ascending fibers of the MLF end in?

A

Oculomotor nuclei

30
Q

What lobe contains the auditory cortex?

A

Temporal

31
Q

The case of the most common basal ganglia disorder is?

A

Dopamine depletion in the substantial nigra

32
Q

The Purkinje cells of the pontocerebellum projects fibers mainly to the ____ nucleus

A

Dentate

33
Q

Which thalamic nucleus is a relay for somatosensory pathways?

A

Vental posterior

34
Q

What is the most common type of glial cell?

A

Astrocyte

35
Q

Where are alpha motor neurons found?

A

Grey matter of the spinal cord

36
Q

What is a CNS fiber tract?

A

A bundle of nerve fibers with the same function

37
Q

What sulcus/fissure splits the cerebral hemispheres?

A

Longitudinal

38
Q

Which artery passes over the corpus callosum?

A

Anterior Cerebral

39
Q

Which artery supplies most of the lateral cerebrum?

A

Middle cerebral

40
Q

Where are the this order neurons of a somatosensory pathway located?

A

Thalamus

41
Q

Which statement is true?

A

Crossing of ascending fibers at more than one level provides exclusive representation of the contralateral cochlea in the primary auditory cortex

42
Q

Normally, both pupils respond with constriction when a light is shone into either eye. Identify a lesion in which, when a light is shone onto the right retina, the left pupil responds but the right does not

A

Transection of the right oculumotor nerve

43
Q

What kind of receptor is a muscle spindle?

A

Nociceptor

44
Q

What are the functional units of the CNS?

A

Neurons

45
Q

The principal output neurons of the cerebral cortex are?

A

Pyramidal cells

46
Q

The lamina of Rexed (Spinal lamina of the gray matter) that collectively form the posterior horn of the spinal cord are?

A

I-VI

47
Q

The sacral elements of the spinal cord may be crushed by a fracture of which vertebrae?

A

L1

48
Q

What part of the internal capsule lies between the thalamus and putamen?

A

Posterior Limb

49
Q

Holy Grail

A

Symp

50
Q

Which sulcus separates the primary motor cortex from the somatosensory cortex?

A

Central

CNS (5 decks)

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