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Physiology > Autonomic Nervous System > Flashcards

Autonomic Nervous System Flashcards

1
Q

Sympathetic

A

During “fight or flight” responses

-usually travels through spinal cord

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2
Q

Parasympathetic

A

More active during “rest and digest” or “feed and breed” situations
-usually travels through vagus or cranial nerves

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3
Q

General sympathetic responses (Physical or mental stress) - 9

A
  1. Increased HR
  2. Increased ABP
  3. Increased bronchodilation
  4. Increased blood flow to muscles
  5. Increased strength
  6. Increased blood glucose (glycolysis)
  7. Increased metabolism
  8. Reduced blood flow to GI system
  9. Pupil dilation
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4
Q

General parasympathetic responses (Relaxed) - 5

A
  1. Decreased HR
  2. Decreased ABP
  3. Increased bronchoconstriction
  4. Increased GI activity
  5. Pupil constriction
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5
Q

Sympathetic Stimulation - Pupil

A

Dilated

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6
Q

Parasympathetic Stimulation - Pupil

A

Constricted

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7
Q

Sympathetic Stimulation - Ciliary muscles

A

Slight relaxation (far vision)

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8
Q

Parasympathetic Stimulation - Ciliary muscles

A

Constricted (near vision)

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9
Q

Sympathetic Stimulation - Glands (nasal, lacrimal, parotid, submandibular, gastric, pancreatic)

A

Vasoconstriction and slight secretion

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10
Q

Parasympathetic Stimulation - Glands (nasal, lacrimal, parotid, submandibular, gastric, pancreatic)

A

Stimulation of copious secretion (containing many enzymes for enzyme secreting glands)

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11
Q

Sympathetic Stimulation - Sweat glands

A

Copious sweating (cholinergic)

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12
Q

Parasympathetic Stimulation - Sweat glands`

A

Sweating on palms of hand

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13
Q

Sympathetic Stimulation - Apocrine glands

A

Thick, odiferous secretion

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14
Q

Parasympathetic Stimulation - Apocrine glands

A

None

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15
Q

Sympathetic Stimulation - Blood vessels

A

Most often constricted

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16
Q

Parasympathetic Stimulation - Blood vessels

A

Most often little or no effect

17
Q

Sympathetic Stimulation - Muscle

A

Increased rate

Increased force of contraction

18
Q

Parasympathetic Stimulation - Muscle

A

Slowed rate

Decreased force of contraction (especially of atria)

19
Q

Sympathetic Stimulation - Coronaries

A

Dilated (B2); Constricted (a)

20
Q

Parasympathetic Stimulation - Coronaries

A

Dilated

21
Q

Sympathetic Stimulation - Bronchi

A

Dilated

22
Q

Parasympathetic Stimulation - Bronchi

A

Constricted

23
Q

Sympathetic Stimulation - Lumen

A

Decreased peristalsis and tone

24
Q

Parasympathetic Stimulation - Lumen

A

Increased peristalsis and tone

25
Q

Sympathetic Stimulation - Sphincter

A

Increased tone (most times)

26
Q

Parasympathetic Stimulation - Sphincter

A

Relaxed (most times)

27
Q

Sympathetic preganglionic NT

A

Acetylcholine

28
Q

Parasympathetic preganglionic NT

A

Acetylcholine

29
Q

Sympathetic postganglionic NT and receptors

A

Norepinephrine and adrenergic receptor

Sweat glands and blood vessels are acetylcholine

30
Q

Parasympathetic postganglionic NT and receptors

A

Acetylcholine and muscarinic receptors

Physiology (17 decks)

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