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Bpk 205 > Lec 12 > Flashcards

Lec 12 Flashcards

1
Q

Homeostasis maintained via ——

A

ANS,endocrine, behavioral system

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2
Q

Responses

A

Autonomic
Endocrine
Behavioral

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3
Q

Some autonomic functions can occur without brain output

A

Baby urinate

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4
Q

Homeostasis is dynamic balance

A

Parasympathetic rest
Sympathetic fight/flight

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5
Q

Antagonist control

A

One Autonomic branch is excitatory
Other is inhibitory

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6
Q

Antagonistic control for heart

A

Parasympathetic: slow rate
Sympathetic: increase rate and force of contraction

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7
Q

Antagonistic gI tract

A

Parasympathetic: promotes digestion
Sympathetic: slow/halt digestion

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8
Q

Most are antagonistic but

A

There are some exceptions
Ex. Blood vessels
Only SNS input and under tonic control
—— regulated by increase/decrease of SNS activity

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9
Q

Sympathetic origin in cns

A

Thoracolumbar

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10
Q

Sympathetic ganglion location

A

Sympathetic ganglia/chain

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11
Q

Parasympathetic origin of CNS

A

Brainstem
Sacral segment

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12
Q

Parasympathetic ganglion location

A

Close to target

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13
Q

Parasympathetic pathway

A

Long preganglionic neurons
Short post preganglionic neuron

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14
Q

Sympathetic pathway

A

Preganglionic neuron short
Postganglionic neuron long

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15
Q

Autonomic pathways consist of two neurons

A

Preganglionic neuron neurotransmitter is always acetylcholine

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16
Q

Difference between sympathetic and parasympathetic

A

-CNS origin of preganglionic neurotransmitters
-location of peripheral autonomic ganglia
-relative lengths of pre- and postganglionic neurons
-receptors at target synapses

17
Q

Sympathetic pathways

A

Use acetylcholine and norepinephrine As neurotransmitters
Preganglionic is short
Adrenergic receptor — GPCR

18
Q

Parasympathetic pathway

A

-Use only acetylcholine as neurotransmitter
-Muscarinic receptor —— GPCR

19
Q

Autonomic synapses at target are

A

Neuroeffector junction

20
Q

Varicosities

A

Swollen regions of axons filled with neurotransmitter vesicles

Bpk 205 (30 decks)

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