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Flashcards in First X Am Deck (31):
1

1. The PNS is derived from the _______ cell?

Neural Crest Cell

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

Pseudounipolar

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3. What myelinates the PNS?

Schwann Cells

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

Mitochondria

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

Multipolar

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6. Cell bodies of the PNS are made up of?

Pseudounipolar or Multipolar

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7. Most common cell causing tumor?

Astrocytoma

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8. Umbilicus is at what dermatome level?

T-10

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9. MS is cause by a defect of?

Autoimmune attack of myelin (Schwann cells?)

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10. Forms Glycoproteins and Lysosomes?

Golgi Bodies

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11. Thick sheath covering a fascicle and nerve fibers?

Perineurium

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12. The minimum amount of neurons in a reflex?

2

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13. In the Ventricular zone, neurons are?

Pleuripotent (Stem cell)

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

Astrocytes

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15. What produces CSF?

Ependymal cells

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

Dermatome

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17. The patellar reflex is an example of?

Myotactic 1 a Fiber

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18. Crossed effect is an example of?

Withdrawal reflex aka. Flexor reflex

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19. Type A axons are?

Largest in diameter

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20. Type C axons are?

Slowest (unmyelinated)

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21. The type of motor neuron responds to muscle stretch

Gamma

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22. Golgi tendons are an example of?

Mechanoreceptors

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23. Which of the following have free never endings?

Thermoreceptors

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24. Motor supply of a muscle spindle is by?

Gamma type neurons

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25. Satellite cells cover neuronal cell bodies in the?

PNS

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26. Multipolar neurons have several fibers from one?

Cell body

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27. Covers only one fiber and surrounds neuronal fibers?

Endonerium

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28. Surrounds a fascicle?

Perinerium

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29. Form glycoproteins and lysosomes?

Golgi Bodies

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

C-fibers

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31. Fat myelinated motor fibers?

Alpha fibers