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physiology 2 > CNS control autonomics lecture > Flashcards

CNS control autonomics lecture Flashcards

1
Q

sympathetic

A

fight or flight response

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2
Q

How does the sympathetic nervous system affect the heart

A

increases heart rate and force of contraction

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3
Q

How does the sympathetic nervous system affect blood vessels

A

skin and organs constrict
muscles and heart dilate

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4
Q

How does the sympathetic nervous system affect the lungs

A

bronchodilation (opens lungs to increase air flow)
inhibits mucus secretion

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5
Q

How does the sympathetic nervous system affect the GI tract

A

relaxes and cessation of digestion

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6
Q

How does the sympathetic nervous system affect fat

A

lipolysis (breaks down fatty acids to mobilize stored energy)

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7
Q

How does the sympathetic nervous system affect the exocrine glands

A

increases sweat and salivary mucus

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8
Q

How does the sympathetic nervous system affect the pupils

A

dilate for distance vision

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9
Q

How does the sympathetic nervous system affect the endocrine glands

A

decreased insulin, increased glucagon, epinephrine, and norepinephrine
(increases blood sugar)

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10
Q

is thermoregulation parasympathetic or sympathetic

A

sympathetic ONLY

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11
Q

How does the parasympathetic nervous system affect the heart

A

decreased rate

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12
Q

How does the parasympathetic nervous system affect blood vessels

A

dilation to reproductive organs only

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13
Q

How does the parasympathetic nervous system affect the lungs

A

bronchiolar constriction and stimulation of mucus secretion

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14
Q

How does the parasympathetic nervous system affect the GI tract

A

improves movement and motility

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15
Q

How does the parasympathetic nervous system affect the pancreas

A

increases insulin or glucagon in a case by case basis

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16
Q

what does increasing insulin do

A

puts glucose into the cells

17
Q

what does increasing glucagon do

A

takes glucose out of the cells

18
Q

sympathetic pre vs postganglionic fibers

A

pre: SHORT fiber- releases ACh to nicotinic receptors
post: LONG fiber- norepinephrine (adrenergic receptors-alpha and beta) and ACh (M3 muscarinic)

19
Q

parasympathetic pre vs postganglionic fibers

A

pre: LONG fiber- releases ACh to nicotinic receptors
post: SHORT fiber -ACh to Muscarinic

20
Q

alpha 1 receptor

A

physiology 2 (2 decks)

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