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Autonomic Physiology 1

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

#1
Front (Question)

What is the purpose of the autonomic nervous system?

Back (Answer)

To control involuntary actions

#2
Front (Question)

What does the autonomic nervous system control?

Back (Answer)

• smooth muscle surrounding blood vessels, airways, bladder, gut and sex organs • secretions from glands • focussing of the eye

#3
Front (Question)

How can the autonomic nervous system be divided?

Back (Answer)

Sympathetic system and Parasympathetic system

#4
Front (Question)

What does the somatic nervous system act on?

Back (Answer)

Skeletal muscle

#5
Front (Question)

What does the autonomic nervous system act on?

Back (Answer)

Smooth muscle Cardiac muscle Glands GI neurones

#6
Front (Question)

Describe the structure of a nerve fibre in the autonomic nervous system?

Back (Answer)

Pre-ganglionic fibre (small myelinated) • Ganglion • Post-ganglionic fibre(unmyelinated) • Receptor

#7
Front (Question)

What is true of somatic nervous system receptors?

Back (Answer)

• specialised NMJ • ionotropic receptors • always excites target

#8
Front (Question)

What is true of autonomic nervous system receptors?

Back (Answer)

• less specialised junction • metabotropic receptors • may excite or inhibit target

#9
Front (Question)

What is the sympathetic nervous system responsible for?

Back (Answer)

Fight or flight

#10
Front (Question)

What is the parasympathetic nervous system responsible for

Back (Answer)

Rest and digest

#11
Front (Question)

Where does the sympathetic nervous system exit the spinal cord?

Back (Answer)

Thoracic 1-12 Lumbar 1-2

#12
Front (Question)

Describe a sympathetic nerve fibre.

Back (Answer)

Ganglia lie close to spinal cord in the sympathetic trunk (paravertebral ganglia) or in collateral ganglia (prevertebral ganglia)

#13
Front (Question)

What do convergence and divergence lead to?

Back (Answer)

Mass activation

#14
Front (Question)

Name 2 autonomic neurotransmitters.

Back (Answer)

Acetylcholine Noradrenaline

#15
Front (Question)

What receptors does acetylcholine act on?

Back (Answer)

Cholinergic receptors (nicotinic/muscarinic)

#16
Front (Question)

What receptors does noradrenaline act on?

Back (Answer)

Adrenergic receptors (a/B)

#17
Front (Question)

Sympathetic Nervous System: What do preganglionic fibres release?

Back (Answer)

Acetylcholine which act on nicotinic cholinergic receptors

#18
Front (Question)

Sympathetic Nervous System: What do postganglionic fibres release?

Back (Answer)

Noradrenaline which acts on a or B adrenergic receptors

#19
Front (Question)

What happens at the post-ganglionic cells of adrenal medulla in the sympathetic nervous system?

Back (Answer)

They have no axons so they release adrenaline and noradrenaline into the blood

#20
Front (Question)

Where does the parasympathetic nervous system exit the spinal cord?

Back (Answer)

Cranial 3,7,9,10 S2-4

#21
Front (Question)

Describe a parasympathetic nerve.

Back (Answer)

Ganglia lie close to or within the target.

#22
Front (Question)

Parasympathetic nervous system: What do the preganglionic fibres release?

Back (Answer)

Acetylcholine which acts on nicotinic cholinergic receptors

#23
Front (Question)

Parasympathetic nervous system: What do the postganglionic fibres release?

Back (Answer)

Acetylcholine which acts on muscarinic cholinergic receptors

#24
Front (Question)

What do postganglionic sympathetic cholinergic fibres do?

Back (Answer)

Innervate sweat glands