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Neuroanatomy PNS > Practice 1 > Flashcards

Practice 1 Flashcards

1
Q

Which organelle is the site of glycoprotein & lysosome synthesis?

A

Golgi Body

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2
Q

Patellar reflex is an example of…?

A

Myotactic reflex

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3
Q

What will happen with distal nerve damage?

A

Wallerion Degeneration

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4
Q

What is the function of satellite cells?

A

Cover neuronal cell bodies (PNS only)

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5
Q

Which neuroglia is analogous to white blood cells?

A

Microglia

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6
Q

Golgi tendon organ is an example of…?

A

Mechanoreceptor

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7
Q

What senses pain & temperature?

A

Free nerve endings

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8
Q

Motor supply to the muscle spindles is supplied by…?

A

Gamma type neurons

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9
Q

Multipolar neurons have several fibers that come off of one…?

A

Cell body

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10
Q

Which fiber type responds to muscle stretch in patellar reflex?

A

Alpha

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11
Q

Astrocytoma percentage?

A

23%

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12
Q

Ependyoma percentage?

A

8%

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13
Q

Oligodendroglioma percentage?

A

3%

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14
Q

Cell bodies of sensory neurons are located in…?

A

DRG

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15
Q

What is the embryological derivative of the PNS?

A

Crest cells

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16
Q

What is the embryological derivative of the CNS?

A

Neural tube

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17
Q

Cell bodies of motor neurons are located in…?

A

Brainstem and Spinal Cord (CNS)

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18
Q

Pseudounipolar cells…?

A

Modified bipolar, transmits sensory signals to receptors in skin, joints and muscles

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19
Q

Bipolar cells…?

A

Transmits signals for special senses

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20
Q

Multipolar cells…?

A

Motor neurons (most common)

21
Q

Cell bodies of the PNS are made up of…?

A

Pseudounipolar & multipolar neurons

22
Q

What is the PNS derived from?

A

Neural crest cells

23
Q

What type of neuron is in the dorsal root ganglion made up of?

A

Psudounipolar

24
Q

What myelinates the PNS?

A

Schwann cells

25
Q

What type of neuron contains multiple fibers branching off of it that carry signals through the brain/spinal cord?

A

Multipolar

26
Q

What is the most common type of glioma?

A

Astrocytoma

27
Q

The umbilicus is found at dermatome level…?

A

T10

28
Q

What are the layers of connective tissue coverings?

A

Epineurium > Perineurium > Endoneurium

29
Q

What is the minimum number of neurons involved in a reflex?

A

2

30
Q

What type of neurons are found in the ventricular zone?

A

Pleuripotent stem cells

31
Q

Satellite cells are similar to ___ in the CNS?

A

Astrocyte

32
Q

What type of reflex is the patellar reflex an example of?

A

Myotactic

33
Q

What type of motor neuron responds to muscle stretch?

A

Gamma

34
Q

What type of reflex involves crossed effects?

A

Withdraw reflex

35
Q

Muscle spindles are an example of…?

A

Stretch receptors

36
Q

What is a thermoreceptor?

A

Free nerve ending

37
Q

Which organelle gives structure to the cell body?

A

Cytoskeleton

38
Q

Which layer surrounds the fascicle?

A

Perineurium

39
Q

Which nerve fiber is the slowest?

A

C

40
Q

Where are golgi tendons found?

A

Muscle-tendon junctions

41
Q

How many pairs of spinal nerves are there?

A

31

42
Q

What is the functional cell for energy?

A

Mitochondria

43
Q

MS is caused by defect of?

A

Autoimmune attack of myelin

44
Q

What produces CSF?

A

Ependymal cells

45
Q

A strip of skin innervated by a single neuron?

A

Receptive field

46
Q

Type A axons are?

A

Largest in diameter

47
Q

Type C axons are?

A

Slowest (unmyelinated)

48
Q

The type of motor neuron that responds to muscle stretch?

A

Gamma

49
Q

Which of the following have free nerve endings?

A

Thermoreceptors

Neuroanatomy PNS (3 decks)

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