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Science for Medicine > Autonomic Physiology 2 > Flashcards

Autonomic Physiology 2 Flashcards

1
Q

What are responses dependent on?

A

Neurotransmitter released

Receptor type

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2
Q

Sympathetic: Ciliary muscle relaxes and eye focuses far away

A

B2

Ciliary muscle round lens

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3
Q

Sympathetic: Radial muscle contracts and makes pupil larger

A

a1

Radial muscle of iris

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4
Q

Parasympathetic: Ciliary muscle contracts and eye focuses close up

A

Muscarinic

Ciliary muscle

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5
Q

Parasympathetic: Contracts sphincter muscle and makes pupil smaller

A

Muscarinic

Sphincter muscle

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6
Q

Sympathetic: Increases heart rate

A

B1

Pacemaker cells

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7
Q

Sympathetic: Increases strength of contraction

A

B1

Myocytes

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8
Q

Parasympathetic: Decreases heart rate

A

Muscarinic

Pacemaker cells

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9
Q

Sympathetic: Makes smooth muscle relax and dilates airways

A

B2

Smooth muscle of airway

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10
Q

Parasympathetic: Makes smooth muscle contract and constricts airways

A

Muscarinic

Smooth muscle of airways

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11
Q

Salbutamol

A

B2 agonist

Dilates airways but does not affect the heart

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12
Q

Atenolol

A

B1 antagonist

Decreases heart rate but does not affect the airway

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13
Q

Sympathetic: Smooth muscle contract and blood flow decreases

A

a1

Smooth muscle of vessels

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14
Q

Sympathetic: Makes smooth muscle relax and blood flow increases

A

B2

Smooth muscle of vessels

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15
Q

Sympathetic: Decreases gut motility

A

a/B

Smooth muscle of gut

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16
Q

Sympathetic: Inhibits secretion of enzymes

A

a

Pancreas

17
Q

Parasympathetic: Increases gut motility

A

Muscarinic

Smooth muscle of gut

18
Q

Parasympathetic: Increases secretion in the gut

A

Muscarinic

Pancreas

19
Q

Sympathetic: Stimulates glycogenolysis and gluconeogenesis

A

a/B

Hepatocytes

20
Q

Sympathetic: Increases lipolysis

A

a/B

Lipocytes

21
Q

Sympathetic: Stimulates thick secretion rich in enzymes

A

B

Salivary glands

22
Q

Parasympathetic: Stimulates profuse watery secretion

A

Muscarinic

Salivary glands

23
Q

Sympathetic: Relaxes smooth muscle and reduces pressure

A

B2

Smooth muscle of bladder wall

24
Q

Sympathetic: Contracts smooth muscle and stops urination

A

a1

Smooth muscle of sphincter

25
Q

Parasympathetic: Contracts smooth muscle and increases pressure

A

Muscarinic

Bladder wall

26
Q

Parasympathetic: Relaxes smooth muscle and causes urination

A

Muscarinic

Sphincter

27
Q

Sympathetic: Contracts smooth muscle and causes ejaculation

A

a1 Smooth muscle of urethra

28
Q

Parasympathetic: Relaxes smooth muscle and causes erection

A

Muscarinic

Smooth muscle of corpus cavernosum

29
Q

What controls all of these responses?

A

Autonomic reflexes and central control

30
Q

What complications may there be?

A

Neurones may co-release transmitters e.g ACg plus a peptie

Science for Medicine (50 decks)

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