Karius Autonomics 2 Lecture Flashcards Preview

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Flashcards in Karius Autonomics 2 Lecture Deck (18)
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1
Q

Sympathetic Fight of Flight

Eye sight: Pupil

A

DILATION OF PUPIL

Radial muscle of the Iris: alpha adrenergic receptors

contraction of muscle leads to dilation of pupil to allow more light in

2
Q

Sympathetic Fight of Flight

Energy source

A

PRIMARILY glucose, because cutting FAs down two carbons at a time is too time consuming

3
Q

Sympathetic Fight of Flight

Eye Sight: Ciliary

A

Ciliary lens helps with distance

Ciliary muscle uses beta-2 adrenergic receptor

relaxation of muscle leads to flattening of lens allowing you to focus on far objects

4
Q

Sympathetic Fight of Flight

Heart

A

uses both beta 1 and beta 2 adrenergic receptors

increases heart rate and strength of contraction

5
Q

Sympathetic Fight of Flight

Vascular supply

A

alpha receptors cause contraction of vascular smooth muscle and lead to vasoconstriction

This is the exception to the alpha-adrenergic-smooth-muscle relaxation rule

alpha-adrenergic receptors in vascular smooth muscle cause it to constrict (vasoconstriction)

beta receptors cause relaxation of vascular smooth muscle and lead to vasodilation

6
Q

alpha adrenergic receptors in the eye and vascular smooth muscle

A

in the eye (radial muscle that control the pupil) relax use them to allow more light into the eye

vascular smooth muscle uses them to signal vasoconstriction–rather than relaxation; the beta receptors cause relaxation

7
Q

Most arteries and veins have what kind of receptors?

A

alpha and beta

8
Q

Heart Lungs Abdominal Kidneys Skeletal: sympathetics

alpha/beta

A

SYMPATHETICS

heart, not a major user of them
skeletal (STRONGly effected)
lungs (not a major player)
abdominal organs 
kidneys
9
Q

what systems only have alpha receptors on their arterial supply?

A
Skin and mucosa (vasoconstriction: limits bleeding)
Salivary glands (vasoconstriction: dry mouth without blood)
brain: vasoconstriction to prevent blood flow if there's been major damage
10
Q

Bronchial smooth muscle use (sympathetics)

A

beta2 receptors
smooth muscle relaxation
bronchodilation

vasculature relaxes in order to get more blood to them (oxygen)

11
Q

bronchial glands (sympathetics)

A

alpha-1 (Decreases secretion)
beta-2 (increase secretion)

bronchial secretions are needed for moisture
if youre running, so much air comes in that it dries the lungs so the secretions are required to humidify the air, but they have to be simultaneously controlled

12
Q

Digestive Track (sympathetics)

A

TURN THIS SUCKER OFF

Motility of the gut decreases: alpha 1 and beta

Sphincters: alpha 1 cause contraction

Secretion: alpha2 decreases section

so there

decrease motility, contracts sphincter to prevent food going to intestine (because it will be digested)

13
Q

Digestive Secretion (sympathetics)

Liver

A

alpha 1 and beta 2 receptors

increase glycogeonolysis (release of glucose)

14
Q

Digestive Secretion (sympathetics)

Adipose tissue

A

alph1, beta1, beta 3 receptors

increase lipolysis

15
Q

Ciliary muscle is ____ by _____ stimulation. This causes the _____ to _____ to ____ _____ _____ ____

A

relaxed by beta-2 receptors

this causes the muscle to flatten to allow more light into the lens

16
Q

Typically alpha receptors cause ____ in smooth muscle. In vascular smooth muscle however they cause

A

relaxation

vasoconstriction

17
Q

beta receptors cause _____ in the vasculature

A

relaxation

18
Q

you won’t find alpha receptors in the

A

brain, skin/mucosa, and salivary glands