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Science for Medicine > Physiology > Flashcards

Physiology Flashcards

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Biology 101 flashcards
1
Q

What is the function of the ANS?

A

Controls the subconscious activities of the body

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2
Q

What are the subdivisions of the ANS?

A

Sympathetic system and parasympathetic system

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3
Q

What is the outflow for the sympathetic system?

A

Thoraco-lumbar, T1-12 and L1-2

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4
Q

What is the outflow for the parasympathetic system?

A

Cranio-sacral, innervation of cranial and sacral cavities 3, 7, 9 and 10

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5
Q

Where are the ganglia held in the sympathetic system?

A

Close to vertebrae in the sympathetic trunk

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6
Q

How are sympathetic postganglionic fibres created?

A

Preganglionic nerves enter the trunk and synapse within it

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7
Q

How long are sympathetic preganglionic fibres?

A

Short

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8
Q

How long are sympathetic postganglionic fibres?

A

Long

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9
Q

Where are parasympathetic ganglion held?

A

Close to the target

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10
Q

How long are parasympathetic preganglionic fibres?

A

Long

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11
Q

How long are parasympathetic postganglionic fibres?

A

Short

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12
Q

What acts on cholinergic receptors?

A

ACh

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13
Q

What are the 2 cholinergic receptors?

A

Muscarinic and nicotinic receptors

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14
Q

What acts on adrenergic receptors?

A

Nor-adrenaline

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15
Q

What are the 2 adrenergic receptors?

A

Alpha and beta receptors

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16
Q

What do preganglionic fibres release?

A

ACh

17
Q

What receptors do preganglionic fibres act on?

A

Nicotinic

18
Q

What do sympathetic postganglionic fibres release?

A

Nor-adrenaline

19
Q

What receptors do sympathetic postganglionic fibres act on?

A

Alpha and beta

20
Q

What is special about the adrenal gland?

A

Sympathetic postganglionic fibres release nor-adrenaline into the blood

21
Q

What do parasympathetic postganglionic fibres release?

A

ACh

22
Q

What receptors do parasympathetic postganglionic fibres act on?

A

Muscarinic

Science for Medicine (19 decks)

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