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FHP - Tri 2 > Autonomic Nervous System > Flashcards

Autonomic Nervous System Flashcards

1
Q

What are the two main subdivisions of the NS?

A

Somatic

Autonomic

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2
Q

What is the ANS governed by? and how does it act?

A

Self-governing

Reflex arcs

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3
Q

What are the two subdivisions of the ANS?

A

Sympathetic

Parasympathetic

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4
Q

Where do the nerve fibres leave the spinal cord in the Sympathetic NS?

A

Thoracic and Lumbar segmental fields

THORACOLUMBAR

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5
Q

Where do the nerve fibres leave the spinal cord in the

Parasympathetic NS?

A

Cranial and Sacral

CRANIOSACRAL

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6
Q

Can both divisions of the ANS supply the same organ?

A

Yes, dual innervation

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7
Q

What do both divisions have in common?

A

They both have a two neurone output pathway

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8
Q

Is the sympathetic pre ganglionic fibre long or short?

A

SHORT

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9
Q

Is the parasympathetic pre ganglionic fibre long or short?

A

LONG

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10
Q

What are the two neurotransmitters in the SNS?

A

ACh and NA

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11
Q

What neurotransmitter is used in the PNS?

A

ACh

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12
Q

What neurotransmitter does the SNS use at the target organ?

A

NA

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13
Q

What neurotransmitter does the PNS use at the target organ?

A

ACh

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14
Q

What secretes adrenaline and noradrenaline into the blood?

A

The adrenal medulla

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15
Q

Which nervous system dominates at rest?

A

PNS

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16
Q

Can the same neurotransmitter have a different actions on different tissues?

A

Yes

17
Q

What are the two types of Noradrenaline receptor?

A

Alpha

Beta

18
Q

What are the two types of Acetylcholine receptors?

A

Muscarinic

Nicotinic (Autonomic ganglia and skeletal neuromuscular junction)

19
Q

What are the two types of Acetylcholine receptors?

A

Muscarinic (PNS target organs)

Nicotinic (Autonomic ganglia and skeletal neuromuscular junction)

20
Q

how does the drug propranolol act?

A

It is a beta blocker and works by blocking the effect of NA on beta receptors (SNS)

21
Q

How does the drug atropine work?

A

It is a muscarinic blocker that blocks the effect of acetylcholine on muscarinic receptors

22
Q

What are the four F’s of the SNS?

A

Fear, Fight, Flight and Fucking

23
Q

What does the acronym SLUDD represent in the PNS?

A 
Salivation 
Lacrimation 
Urination 
Digestion 
Defecation

FHP - Tri 2 (8 decks)

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