Autonomic nervous system Flashcards

1
Q

What is the general overview of neurones in the ANS?

A

2 neurones in series. 1 cell body in the CNS and myelinated, 1 cell body in the PNS and not myelinated

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2
Q

What can the ANS be split into?

A

Sympathetic branch

Parasympatehtic branch

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3
Q

What is the sympathetic branch of the ANS responsible for?

A

Fight or Flight response in stress situation

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4
Q

What is the parasympathetic branch of the ANS respsonsible for?

A

Maintaining the Basal state

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5
Q

Which organ receives Sympathetic innervation only?

A

Sweat glands

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6
Q

What is the spinal outflow of the Sympathetic branch of the ANS?

A

Thoraco-Lumbar

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7
Q

In the Sympathetic branch of the ANS, what are the neurotransmitters?

A

Pre ganglionic - Cholinergic

Post ganglionic - Noradrenergic

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8
Q

What is the spinal outflow of the Parasympathetic branch of the ANS?

A

CranioSacral

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9
Q

In the Parasympathetic branch of the ANS, what are the neurotransmitters?

A

Pre ganglionic - Cholinergic

Post ganglionic - Cholinergic

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10
Q

What 2 mechanisms are exceptions to the Sympathetic innervation ‘rules’?

A

Sweating and Ejaculation are Cholinergic even though they are Sympathetic ANS

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