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Anatomy & Physiology - Kuntzman > ANS > Flashcards

Flashcards in ANS Deck (14)
1

How many motor neurons from the CNS to effector in ANS? SNS?

ANS - 2: Preganglion, through ganglion, post ganglion then effected organ
SNS - 1: 1 motor neuron from CNS & synapses directly with skeletal muscle fiber

2

What type of control is the SNS? ANS?
Either voluntary or involuntary

ANS - involuntary
SNS - voluntary

3

ANS: what kind of tissue/organ is effected

Cardiac, smooth muscle, and glands

4

What are the two divisions of the ANS?

Sympathetic and parasympathetic

5

What kind of neurotransmitter does the SNS release? The ANS?

SNS: Acetylcholine
ANS: Acetylcholine & norepinephrine

6

T/F
Are visceral upload with nerves of both Sympathetic and parasympathetic divisions?

True

7

Which viscera receive only Sympathetic, not parasympathetic nerves?

Sweat glands, blood vessels, hair muscles

8

Where are the sympathetic preganglionic neurons located

T1-L2

9

Which nerve carries 80% of all parasympathetic nerve impulses?

Vagus nerve

10

Parasympathetic division: how do the craniosacral nerves differ in their ganglion

CN 3, 7, &9 route through a proximal ganglion before their longer assent to the effector organ
CN 10 and pelvic solan cynic nerves distro to organ and at the organ go through their ganglion

11

What is ACh destroyed by?

ACh-ase
Therefore short lived response

12

Which ANS neurons release ACh?

S & P all preganglionic axons
All P post ganglioside axons
Amon postganglionic axons (sweat glands)

13

Physiologically what are the sympathetic effects?

Increase heart rate and BP
Dilate pupils
Dilate airways
Dilate vessels to skeletal, HE, LIV and adipose tissue
Constrict blood to skin, GI, KI
Mobilize E'y from glucose and fats

14

What are the effects of the parasympathetic system firing?

SLUDD
Salivation
Lacrimation
Urination
Digestion
Dedication
Decrease HR, pupil, airway