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PNS > First X Am > Flashcards

First X Am Flashcards

1
Q
  1. The PNS is derived from the _______ cell?
A

Neural Crest Cell

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2
Q
  1. The DRG is made up of what type of neurons?
A

Pseudounipolar

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3
Q
  1. What myelinates the PNS?
A

Schwann Cells

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4
Q
  1. What is the functional cell for energy (ATP)?
A

Mitochondria

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5
Q
  1. Multiple branches to the cell body that carries signals through brain/spinal cord?
A

Multipolar

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6
Q
  1. Cell bodies of the PNS are made up of?
A

Pseudounipolar or Multipolar

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7
Q
  1. Most common cell causing tumor?
A

Astrocytoma

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8
Q
  1. Umbilicus is at what dermatome level?
A

T-10

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9
Q
  1. MS is cause by a defect of?
A

Autoimmune attack of myelin (Schwann cells?)

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10
Q
  1. Forms Glycoproteins and Lysosomes?
A

Golgi Bodies

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11
Q
  1. Thick sheath covering a fascicle and nerve fibers?
A

Perineurium

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12
Q
  1. The minimum amount of neurons in a reflex?
A

2

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13
Q
  1. In the Ventricular zone, neurons are?
A

Pleuripotent (Stem cell)

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14
Q
  1. Satellite cells are similar to what in the CNS?
A

Astrocytes

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15
Q
  1. What produces CSF?
A

Ependymal cells

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16
Q
  1. A strip of skin inner gated by a single spinal nerve?
A

Dermatome

17
Q
  1. The patellar reflex is an example of?
A

Myotactic 1 a Fiber

18
Q
  1. Crossed effect is an example of?
A

Withdrawal reflex aka. Flexor reflex

19
Q
  1. Type A axons are?
A

Largest in diameter

20
Q
  1. Type C axons are?
A

Slowest (unmyelinated)

21
Q
  1. The type of motor neuron responds to muscle stretch
A

Gamma

22
Q
  1. Golgi tendons are an example of?
A

Mechanoreceptors

23
Q
  1. Which of the following have free never endings?
A

Thermoreceptors

24
Q
  1. Motor supply of a muscle spindle is by?
A

Gamma type neurons

25
Q
  1. Satellite cells cover neuronal cell bodies in the?
A

PNS

26
Q
  1. Multipolar neurons have several fibers from one?
A

Cell body

27
Q
  1. Covers only one fiber and surrounds neuronal fibers?
A

Endonerium

28
Q
  1. Surrounds a fascicle?
A

Perinerium

29
Q
  1. Form glycoproteins and lysosomes?
A

Golgi Bodies

30
Q
  1. Small unmyelinated sensory fibers that pick up pain, temp, and touch?
A

C-fibers

31
Q
  1. Fat myelinated motor fibers?
A

Alpha fibers

PNS (2 decks)

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