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NEURO 375 > Intro > Flashcards

Intro Flashcards

1
Q

What is a bundle of axons in the CNS called?

A

tract

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2
Q

What is a bundle of axons in the PNS called?

A

nerve

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3
Q

What is a group of neurons in the CNS called?

A

nucleus

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4
Q

What is a group of neurons in the PNS called?

A

ganglion

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5
Q

Is the CNS or PNS protected by bone?

A

CNS

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6
Q

What are the divisions of the peripheral nervous system?

A

somatic and autonomic

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7
Q

What are the 2 divisions of the autonomic nervous system?

A

motor and sensory

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8
Q

Are sympathetic and parasympathetic actions controlled by the autonomic motor division or the autonomic sensory division?

A

autonomic motor division

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9
Q

TRUE or FALSE: both somatic and autonomic nervous systems have a motor and sensory component.

A

TRUE

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10
Q

Who is credited for the Neuron Doctrine?

A

Ramon y Cajal

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11
Q

Describe the structure of a cortical neuron. Is it myelinated?

A

dendrite –> cell body –> axon hillock –> axon –> axon terminal

unmyelinated

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12
Q

Describe the structure of a motor neuron. Is it myelinated?

A

dendrite –> cell body –> axon hillock –> axon –> axon terminal –> muscle

ALWAYS myelinated

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13
Q

Describe the structure of a sensory neuron. Is it myelinated?

A

receptor cell –> peripheral branch axon –> cell body –> central branch axon –> axon terminals

myelinated

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14
Q

Which type of neuron does not have dendrites?

A

sensory neuron

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15
Q

Where are purkinje neurons found?

A

cerebellum

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16
Q

Which of the following is/are multipolar?

a) interneuron
b) cortical neuron
c) motor neuron
d) sensory neuron
e) Purkinje neuron

A

b) cortical neuron
c) motor neuron
e) Purkinje neuron

17
Q

Which of the following is/are unipolar?

a) interneuron
b) cortical neuron
c) motor neuron
d) sensory neuron
e) Purkinje neuron

A

d) sensory neuron

18
Q

Which of the following is/are bipolar?

a) interneuron
b) cortical neuron
c) motor neuron
d) sensory neuron
e) Purkinje neuron

A

a) interneuron

19
Q

Which neuroglial cells form myelin sheath in the CNS?

A

oligodendrocytes

20
Q

Which neuroglial cells form myelin sheath in the PNS?

A

Schwann cells

21
Q

Which are essential for neuronal signaling?

a) neurons
b) glia
c) both
d) neither

A

c) both

22
Q

List all the glial cells in the PNS.

A
  • Schwann cells
  • Satellite cells
23
Q

List the glial cells in the CNS.

A
  • oligodendrocytes
  • astrocytes
  • microglia
  • ependymal cells
24
Q

Which type of glial cell participates in regeneration?

A

Schwann cells

25
Q

What do astrocytes do?

A
  • maintain BBB
  • regulate ion, nutrient, and gas concentrations
  • absorb and recycle NTs
  • form glial scar after injury
26
Q

What do microglia do?

A

remove cell debris, wastes, and pathogens via phagocytosis

27
Q

What is the difference between grey and white matter distribution in the cerebral cortex and the spinal cord?

A

cerebral cortex: white matter inside, grey matter outside
spinal cord: white matter outside, grey matter inside

28
Q

What do large diameter axons detect?

A
  • touch
  • pressure
  • vibration
  • joint positioning
29
Q

What do small diameter axons detect?

A
  • pain
  • temperature
30
Q

Are large diameter axons faster or small diamter axons?

A

large diameter axons

31
Q

Which is somatic?

a) dorsal root ganglia
b) autonomic ganglia
c) both
d) neither

A

a) dorsal root ganglia

32
Q

Which is parasympathetic and sympathetic?

a) dorsal root ganglia
b) autonomic ganglia
c) both
d) neither

A

b) autonomic ganglia

33
Q

Which has cell bodies of primary sensory neurons?

a) dorsal root ganglia
b) autonomic ganglia
c) both
d) neither

A

a) dorsal root ganglia

34
Q

Which has cell bodies of postsynaptic motor neurons?

a) dorsal root ganglia
b) autonomic ganglia
c) both
d) neither

A

b) autonomic ganglia

35
Q

Which is pseudounipolar?

a) dorsal root ganglia
b) autonomic ganglia
c) both
d) neither

A

a) dorsal root ganglia

36
Q

Which is multipolar?

a) dorsal root ganglia
b) autonomic ganglia
c) both
d) neither

A

b) autonomic ganglia

37
Q

Which have nuclei in the center of the cell?

a) dorsal root ganglia
b) autonomic ganglia
c) both
d) neither

A

a) dorsal root ganglia

38
Q

Which have nuclei located eccentrically?

a) dorsal root ganglia
b) autonomic ganglia
c) both
d) neither

A

b) autonomic ganglia

39
Q

Which has the more apparent satellite cell sheath?

a) dorsal root ganglia
b) autonomic ganglia
c) both
d) neither

A

a) dorsal root ganglia

NEURO 375 (19 decks)

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