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Exam 2 (PARP) > Peripheral Nerve > Flashcards

Peripheral Nerve Flashcards

1
Q

The post ganglionic motor neuron release what neurotransmitter

A

Acetylcholine and norepinephrine

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2
Q

Pseudounipolar neuron has a functional __________that is really an axon.

A

Dendrite

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3
Q

Nerve trunk

A

the main stem of a nerve.

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4
Q

TRVM8

A

Merkel’s Disk

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5
Q

A group of neurons in the CNS

A

Nucleus

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6
Q

Receptors for heat- sensitive endings

A

Vanilloid receptor, VR1

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7
Q

Name of cell body in motor neuron

A

Perikaryon

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8
Q

Light touch

A

Meissner’s corpuscle

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9
Q

Round Shape, single process that bifurcates into a sensory axon

A

Pseudo-unipolar neuron

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10
Q

Dorsal root ganglia is in the ________ nervous system

A

PNS

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11
Q

Deep touch

A

Pacinian corpsules

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12
Q

Periperal Nerves contain axons but no _________

A

dendrites

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13
Q

Autonomic nervous system

A
  1. Involuntary control of viscera
  2. Sympathetic system
  3. Parasympathetic system
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14
Q

In the ________, a thin outer shell of gray matter covers the surface and is found in clusters called nuclei, inside of the CNS.

A

Brain

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15
Q

Nerves grow into _______ to reach their targets and stimulate _________ to follow them.

A

Tissues; arteries

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16
Q

Somatic nervous system

A

Voluntary motor and sensory components

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17
Q

What is the muscle spindle?

A
  1. An encapsulated sensory receptor
  2. Specialized stretch receptor
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18
Q

Sensory neurons send an __________signal

A

Afferent

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19
Q

___________ stimulates cold-sensitive Ca+ channels

A

Menthol

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20
Q

White matter consists of:

A

Myelinated processes

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21
Q

In the ______________, gray matter forms an H-shaped inner core surrounded by white matter

A

Spinal cord

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22
Q

Which receptors detect pressure?

A

Merkel’s Disk

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23
Q

Merkel’s disk have ___________ adaptation

A

Slow

24
Q

Receptor potential for heat-sensitive endings

A

TRPV1

25
Q

Which motor neuron type is myelinated? Which is not?

A

Preganglionic motor neurons are myelinated; postganglionic motor neurons are unmyelinated

26
Q

A group of neurons in the PNS

A

Ganglia

27
Q

Nerves usually accompany ___________ vessels

A

Blood

28
Q

___________surrounds nerve fibers

A

Endoneurium

29
Q

Gray matter consists of:

A

Nerve cell bodies, dendrites, axon terminals, bundles of unmyelinated axons and neuroglia

30
Q

Node of Ranvier

A

a gap in the myelin sheath of a nerve, between adjacent Schwann cells.

31
Q

Meissner’s corpuscle are found in what layer of the skin

A
  1. Dermis
32
Q

____________ stimulates heat-sensitive Ca+ channels in heat-sensitive endings.

A

Capsaicin

33
Q

Types of receptors

A
  1. Mechanoreceptors
  2. Thermoreceptors
  3. Nociceptors
  4. Proprioceptors (muscle spindles)
34
Q

Pacinian corpusles are found in what layer of the skin

A

Hypodermis

35
Q

Nerves release angiogenic factors such as __________, which are enzyme linked receptors.

A

Vascular Endothelial Growth Factor (VEGF)

36
Q

Sensory neurons go through the ________ horn

A

Dorsal

37
Q

Receptor potential for cold-sensitive endings

A

TRVM8

38
Q

Two functional divisions of the nervous system

A
  1. Somatic
  2. Automatic
39
Q

The preganglionic motor neurons release what neurotransmitter (s)

A

Acetylcholine

40
Q

Neuron with a pyramidal shape

A

Motor

41
Q

Cells that myelinate axons of PNS

A

Schwann Cells

42
Q

Motor neurons go through the ______ horn

A

Ventral

43
Q

Sensory neurons do not have ___________

A

Dendrites

44
Q

Motor neurons send an________ signal

A

Efferent

45
Q

Receptor for cold-sensitive ending

A

Vanilloid receptor, VR1

46
Q

Receptors for _______, _______, and ____________ mediate painful sensations

A

ATP, histamine, bradykinin

47
Q

What components make up a peripheral nerve?

A
  1. Nerve fibers
  2. Nerve fascicles
48
Q

A pseudounipolar neuron is __________ neuron

A

Sensory

49
Q

Pacinian corpsules and Meissner’s corpuscle have ___________ nerve endings that allow ________ adaptation.

A

encapsulated; fast

50
Q

Merkel’s disk are found at the edge of the _________

A

Epidermis

51
Q

_________ surrounds fascicles

A

Perineurium

52
Q

Pseudounipolar neurons are found in the __________

A

Dorsal root ganglia

53
Q
  1. Pushing on the Pacinian corpuscle sets off pressure sensitive ________ channels
A

Sodium

54
Q

A group of axons in the CNS

A

Tract

55
Q

___________ surrounds nerves

A

Epineurium

Exam 2 (PARP) (17 decks)

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