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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

24
Q

Receptor potential for heat-sensitive endings

25
Which motor neuron type is myelinated? Which is not?
Preganglionic motor neurons are myelinated; postganglionic motor neurons are unmyelinated
26
A group of neurons in the PNS
Ganglia
27
Nerves usually accompany ___________ vessels
Blood
28
\_\_\_\_\_\_\_\_\_\_\_surrounds nerve fibers
Endoneurium
29
Gray matter consists of:
Nerve cell bodies, dendrites, axon terminals, bundles of unmyelinated axons and neuroglia
30
Node of Ranvier
a gap in the myelin sheath of a nerve, between adjacent Schwann cells.
31
Meissner’s corpuscle are found in what layer of the skin
1. Dermis
32
\_\_\_\_\_\_\_\_\_\_\_\_ stimulates heat-sensitive Ca+ channels in heat-sensitive endings.
Capsaicin
33
Types of receptors
1. Mechanoreceptors 2. Thermoreceptors 3. Nociceptors 4. Proprioceptors (muscle spindles)
34
Pacinian corpusles are found in what layer of the skin
Hypodermis
35
Nerves release angiogenic factors such as \_\_\_\_\_\_\_\_\_\_, which are enzyme linked receptors.
Vascular Endothelial Growth Factor (VEGF)
36
Sensory neurons go through the ________ horn
Dorsal
37
Receptor potential for cold-sensitive endings
TRVM8
38
Two functional divisions of the nervous system
1. Somatic 2. Automatic
39
The preganglionic motor neurons release what neurotransmitter (s)
Acetylcholine
40
Neuron with a pyramidal shape
Motor
41
Cells that myelinate axons of PNS
Schwann Cells
42
Motor neurons go through the ______ horn
Ventral
43
Sensory neurons do not have \_\_\_\_\_\_\_\_\_\_\_
Dendrites
44
Motor neurons send an\_\_\_\_\_\_\_\_ signal
Efferent
45
Receptor for cold-sensitive ending
Vanilloid receptor, VR1
46
Receptors for \_\_\_\_\_\_\_, \_\_\_\_\_\_\_, and ____________ mediate painful sensations
ATP, histamine, bradykinin
47
What components make up a peripheral nerve?
1. Nerve fibers 2. Nerve fascicles
48
A pseudounipolar neuron is __________ neuron
Sensory
49
Pacinian corpsules and Meissner’s corpuscle have ___________ nerve endings that allow ________ adaptation.
encapsulated; fast
50
Merkel’s disk are found at the edge of the \_\_\_\_\_\_\_\_\_
Epidermis
51
\_\_\_\_\_\_\_\_\_ surrounds fascicles
Perineurium
52
Pseudounipolar neurons are found in the \_\_\_\_\_\_\_\_\_\_
Dorsal root ganglia
53
1. Pushing on the Pacinian corpuscle sets off pressure sensitive ________ channels
Sodium
54
A group of axons in the CNS
Tract
55
\_\_\_\_\_\_\_\_\_\_\_ surrounds nerves
Epineurium

Exam 2 (PARP) (17 decks)

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