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MTM Exam 4 > PNS > Flashcards

PNS Flashcards

1
Q

What does N1 (or Nm) innervate?

A

Neuromuscular Junction

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2
Q

What does N2 (or Nn) innervate?

A
  • Autonomic ganglia
  • CNS
  • Adrenal Medulla
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3
Q

What does M1 innervate?

A
  • Striatum
  • Cortex
  • Hippocampus
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4
Q

What does M2 innervate?

A
  • Forebrain
  • Thalamus
  • Heart
  • Pupil
  • Spinal Cord
  • Exocrine
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5
Q

What does M3 innervate?

A
  • Brain
  • Hypothalamus
  • Pupils
  • Exocrine
  • Peripheral Arteries
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6
Q

What does M4 innervate?

A
  • Striatum
  • Cortex
  • Hippocampus
  • Spinal Cord
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7
Q

What does M5 innervate?

A
  • Dopaminergic neurons
  • Basal ganglia
  • Brain vasculature
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8
Q

What is an antagonist for nicotinic receptors?

A

N1: Curare

N2: Hexamethonium

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9
Q

What is an antagonist for muscarinic receptors?

A
  • Atropine
  • Scopolamine
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10
Q

What is an antagonist for alpha adrenergic catecholamine receptors?

A

Phentolamine (α1 and α2)

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11
Q

What is an antagonist for beta adrenergic catecholamine receptors?

A

Propanolol (β1 and β2)

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12
Q

What is an antagonist for Somatic Motor Nicotinic receptors?

A

Curare

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13
Q

What is an agonist for alpha adrenergic catecholamine receptors?

A

Phenylephrine (α1)

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14
Q

What is an agonist for beta adrenergic catecholamine receptors?

A

Isoproterenol (β1 and β2)

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15
Q

For the SNS, how is the pupil dilated?

A

α1 receives adrenergic stimulation to contract the radial muscle for pupil dilation.

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16
Q

For the PNS, how is the pupil constricted?

A

M3 receives cholinergic stimulation to contract the sphincter muscle for pupil constriction.

17
Q

What is another word for pupil dialation?

A

Mydriasis

18
Q

What is another word for pupil constriction?

A

Miosis

19
Q

In the SNS, how is the eye adjusted for far vision?

A

β2 relaxes the ciliary muscle

20
Q

In the PNS, how is the eye contacted for near vision?

A

M3 contracts the ciliary muscle

MTM Exam 4 (12 decks)

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