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Neurones > Autonomic Innervation On Internal Organs > Flashcards

Autonomic Innervation On Internal Organs Flashcards

1
Q

Effect of parasympathetic on eye

A

Sphincter contracts
Ciliary muscles contract
Lens thicken
Pupil contracts

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2
Q

Effect of sympathetic on eye

A

A1 causes radial muscles to contract
Eyes dilate
B2 ciliary muscles relax
Far away focus

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3
Q

Parasympathetic on heart

A

Heart rate decreases but minor effect

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4
Q

Sympathetic on heart

A

B1 triggers pacemaker to increase heart rate

Myocytes muscles contract

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5
Q

Effect of parasympathetic on lungs

A

Smooth muscles contract

Airway constricts

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6
Q

Sympathetic on lungs

A

B2 smooth muscles relax, airway dilates

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7
Q

Parasympathetic on blood

A

No effect unless saliva or genitals

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8
Q

Sympathetic on blood

A

A1 constricts reducing flow to gut

B2 cause smooth muscle to relax for blood flow increase

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9
Q

ParaSympathetic on gut

A

Increased gut motility and pancreatic secretion

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10
Q

sympathetic on gut

A

A and b inhibit gut motility And pancreatic secretion of enzymes

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11
Q

Parasympathetic effect on energy stores

A

No effect

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12
Q

Sympathetic effect on energy stores

A

Increases gluconeogenesis, glyogenolysis and lipolysis

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13
Q

Salivary glands parasympathetic effect

A

Increase secretion of watery mucous

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14
Q

Sympathetic effect on salivary glands

A

A receptors increase secretion of thick enzyme rich mucous

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15
Q

Effect of parasympathetic on bladder

A

Bladder walls contract, sphincter relaxes

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16
Q

Effect of sympathetic on bladder

A

B2 relaxes walls to reduce pressure

A1 makes sphincter contract

17
Q

Parasympathetic on reproductive tract

A

Relax smooth muscle for erection

18
Q

Sympathetic on reproductive tract

A

Alpha allow muscle to contract for ejaculation

19
Q

Parasympathetic characteristics

A 
Cranial/sacral region
Long pre/shorter post
Controls gut, head and pancreas
Cholinergic ionotropic ganglionic 
Muscranic metatropic post ganglionic
20
Q

Sympathetic characteristics

A

Thoracic/lumbar region
Join trunk
Shorter myelinated/longer unmyelinated post.
Controls and the head, heart, blood vessels, pancreas and adrenal gland
Cholinergic receptors nicotinic ganglion
Relies on adrenaline/no adrenaline for adrenergic metatropic alpha/beta receptors
Mass activation of trunk

Neurones (3 decks)

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