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Science for Medicine > Autonomic Physiology > Flashcards

Autonomic Physiology Flashcards

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1
Q

What does the autonomic nervous system control?

A

The subconscious activities of the body

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2
Q

What is the ANS split into?

A

Parasympathetic system

Sympathetic system

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3
Q

Which nerves make up the sympathetic system?

A

T1-12

L1-2

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4
Q

Which system’s nerves usually have a long pre-ganglionic fibre?

A

Parasympathetic system

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5
Q

Which system is associated with “Fight or flight”?

A

Sympathetic system

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6
Q

ACh works on what type of receptors?

A

Cholinergic

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7
Q

Give two examples of cholinergic receptors

A

Muscarinic

Nicotinic

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8
Q

Noradrenaline works on what type of receptors?

A

Adrenergic

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9
Q

Give two examples of adrenergic receptors

A

Alpha

Beta

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10
Q

What do all preganglionic fibres release?

A

ACh onto nicotinic receptors

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11
Q

What do postganglionic fibres in sympathetic nerves release onto alpha or beta receptors?

A

Noradrenaline

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12
Q

In parasympathetic nerves, postganglionic fibres release what onto muscarinic receptors?

A

ACh

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13
Q

What kind of NMJ does the somatic nervous system have?

A

Specialised

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14
Q

What type of receptors are used in the somatic nervous system?

A

Ionotropic

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15
Q

Ganglia of what nervous system lie closer to the spinal cord?

A

Sympathetic nervous system

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16
Q

What is the colour of the ramus that contains the preganglionic fibre?

A

White

17
Q

Adrenal glands release their adrenaline into where in the sympathetic system?

A

Directly into the blood

18
Q

Ganglia from the parasympathetic nervous system lie closer to where?

A

The target

19
Q

What does a B2 receptor do?

A

Relaxes the muscle

20
Q

Whats does an a1 receptor do?

A

Contracts muscle

21
Q

What is the sympathetic system there for?

A

Fight and flight

22
Q

What is the parasympathetic system there for?

A

Rest and digest

23
Q

An alpha-1 receptor will make smooth muscle do what?

A

Contract

24
Q

The parasympathetic system is what type of outflow?

A

Cranio-sacral

25
Q

The sympathetic system is said to have what type of outflow?

A

Thoracic-lumbar

26
Q

Which type of fibre is unmyelinated?

A

Post-ganglionic

27
Q

The somatic nervous system works on what type of muscle only?

A

Skeletal muscle

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