important stuff Flashcards

1
Q

Sympathetic

A

vasoconstriction:
* ANS Sympathetic preganglionic neuron will release ACh.
-This ACh will bind to the nicotinic AChR on the postganglionic neuron
acting as an EPSP (encourage action potential).
-The SNS postganglionic neuron will release Norepinephrine (NE)
* NE will bind to the alpha-adrenergic receptor on the muscle tissue of
blood vessels
* This causes the muscle tissue to contract leading vasoconstriction.
* Vasoconstriction increases blood pressure.

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2
Q

parasympathetic

A

During times of quiet or rest, our blood pressure to
lower.
* ANS Parasympathetic preganglionic neuron will release ACh.
* This ACh will bind to the nicotinic AChR on the postganglionic
neuron acting as an EPSP (encourage action potential).
* The PNS postganglionic neuron will release ACh
* This ACh will bind to the muscarinic AChR on the muscle
tissue of blood vessels
* This causes the muscle tissue to relax leading vasodilation.
* Vasodilation decreases blood pressure

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3
Q

reticular formation

A

sends impulses to cerebral cortex to keep us awake

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4
Q

basal nuclei

A

group of structures in the brain mainly responsible for motor function and movement and behavior/emotion. Cortex/cerebellum/basal ganglia thalamus

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