Test 1

Question 1

The PNS is derived from the?

Answer 1

Neural Crest Cell

Question 2

The DRG is made up of what type of neurons

Answer 2

Pseudounipolar

Question 3

What myelinated the PNS?

Answer 3

Schwann Cells

Question 4

What is the final cell for energy?

Answer 4

Mitochondria

Question 5

Multiple branches to the cell body that carries signal through the brain/spinal cord?

Answer 5

Multipolar

Question 6

Cell bodies of the PNS are made up of?

Answer 6

Pseudounipolar or Multipolar

Question 7

Most common cell causing tumor?

Answer 7

Astrocytoma

Question 8

Umbilicus is what dermatome level?

Answer 8

T-10

Question 9

MS is cause by a defect of?

Answer 9

Autoimmune attack of myelin (Schwann cells)

Question 10

Forms Glycoproteins and Lysosomes

Answer 10

Golgi Bodies

Question 11

Thick sheath covering a fascicle and nerve fibers?

Answer 11

Perineurium

Question 12

The minimum amount of neurons in a reflex

Answer 12

2

Question 13

In the ventricular zone, neurons are?

Answer 13

Pleuripotent

Question 14

Satellite cells are similar to what in the CNS?

Answer 14

Astrocytes

Question 15

What produces CSF?

Answer 15

Ependymal cells

Question 16

A strip of skin innervated by a single spinal nerve?

Answer 16

Dematome

Question 17

The patellar reflex is an example of?

Answer 17

Myotatic 1a fibers

Question 18

Crossed effect is an example of?

Answer 18

Withdrawal reflex aka Flexor Reflex

Question 19

Type A axons are?

Answer 19

Largest in diameter

Question 20

Type C axons are

Answer 20

Slowest (unmyelinated)

Question 21

The type of motor neurons respond to muscle stretch

Answer 21

Gamma

Question 22

Golgi tendon are an example of?

Answer 22

Mechanoreceptors

Question 23

Which of the following have free nerve endings

Answer 23

Thermoreceptors

Question 24

Motor supply of a muscle spindle is by?

Answer 24

Gamma type neurons

Question 25

Satellite cells cover neuronal cell bodies in the?

Answer 25

PNS

Question 26

Multipolar neurons have several fibers from one?

Answer 26

Cell Body

Question 27

Covers only one fiber and surrounds neuronal fibers?

Answer 27

Endoneurium

Question 28

Surrounds a Fasicle?

Answer 28

Perineurium

Question 29

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

Answer 29

C-fibers

Question 30

Fat myelinated motor fibers?

Answer 30

Alpha Fibers

Question 31

The Marginal zone has either?

Answer 31

Neurons or Glial Cells

Question 32

Satellite Cells are analogous to?

Answer 32

Astrocytes

Question 33

An Astrocytomas account for what percentage of brain tumors?

Answer 33

23%

Question 34

A territory from which a sensory unit can be excited?

Answer 34

Receptor Field

Question 35

A secondary sensory innervations that detect degree of stretch?

Answer 35

Flowerspray endings

Question 36

A knee jerk is what type of reflex?

Answer 36

Myotatic reflex - 1a fibers

Question 37

Golgi Tendon Organs are found at?

Answer 37

Muscle Tendon Junctions

Question 38

The Cauda Equine is located at?

Answer 38

L2-S2

Question 39

The epidural space has?

Answer 39

Fat Pad

Question 40

What myleninates the CNS?

Answer 40

Oligodendrocytes