Anatomy 2: Parasympathetic and Sympathetic Nervous System

What is the function of the PSNS

rest and digest, promotes the survival of individual or species

What is the NT of the PSNS

Ach

What is a nicotinic receptor

sysnapse between preganglionic and postganglionic, both SNS and PSNS

Is nicotinic receptor excitatory or inhibitory

excitatory

What is a muscarinic receptor

the response to Ach, PSNS

Are muscarinic receptors excitatory or inhibitory

both

Does the PSNS fibers travel to skin and arteries

No

What is the function of the SNS

fight or flight, dealing with stress

What is the neurotransmitter of the SNS

mostly NE

What does the SNS do to the pupils

dilate

What does the SNS to salivary secretions

decrease

What does the SNS do to reticular activating system

increase

What does the SNS do to bronchi

dilate (increase air)

What does the SNS do to heart rate

increase

What does the SNS do to the breakdown of fats(glucose)

increase

digestive, urinary, and reproduction in the SNS

decrease, increase sphincter close

What is a paradoxical reaction in SNS

when soil/wet self, unusual

Blood flow to digestive, urinary, reproductive systems, and skin in SNS

decrease

Blood flow to heart, brain, and skeletal muscles in SNS

increase

What is dually innervated

Viscera, smooth muscle, glands, heart, pupils

What has the most control over the autonomic nervous system

hypothalamus

what part of the hypothalmus control the SNS

posterior

What part of the hypothalamus controls the PSNS

anterior

What do Mimetic drugs do

Mimic either PSNS or SNS

What do mimetic drugs do in the SNS (release, breakdown, receptors)

Increase release of NE, inhibit breakdown of NE, binding to and stimulating NE receptors

What do mimetic drugs do in the PSNS (release, breakdown, receptors)

increase release of Ach, inhibit breakdown of Ach, binding to and stimulating Ach receptors

What are blockers

inhibit/ block systems

What do blockers do in the SNS (release, breakdown, receptors)

decrease release of NE, Increasing breakdown of NE, blocking NE receptors

What do blockers do in the PSNS (release, breakdown, receptors)

Decrease release of Ach, increase breakdwon of Ach, blocking Ach receptor