- Shuffle
Toggle OnToggle Off
- Alphabetize
Toggle OnToggle Off
- Front First
Toggle OnToggle Off
- Both Sides
Toggle OnToggle Off
Front
How to study your flashcards.
Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key
Up/Down arrow keys: Flip the card between the front and back.down keyup key
H key: Show hint (3rd side).h key
PLAY BUTTON
PLAY BUTTON
17 Cards in this Set
- Front
- Back
|
What is the autonomic nervous system responsible for?
|
unconscious control of the visceral organs
|
|
Where does the autonomic NS begin?
|
at the hypothalamus, and has 2 motor neurons to the target
|
|
Where does the preganglionic neuron synapse with the postganglionic neuron?
|
at a ganglion
|
|
What is the target of the autonomic NS?
|
cardiac muscle tissue
smooth muscle tissue glands |
|
What are the neurotransmitters for the auto NS?
|
Ach or NE,E
|
|
Is the auto NS excitatory or inhibitory?
|
can be both
|
|
What are the 2 components of the auto NS?
|
Sympathetic-fight or flight
Parasympathetic-resting & digesting |
|
Symptoms of the sympathetic NS...
|
increased HR
increased blood flow increased respirations decreased digestion vasoconstriction of blood vessels |
|
Syptoms of the parasympathetic NS...
|
decreased HR
decreased blood flow decreased respirations increased digestion vasodilation of blood vessels |
|
Can both para and sympathetic systems function at the same time?
|
no
|
|
Why can the para and sympathetic systems not function together?
|
body cannot rest and digest during fight or flight...and vice versa
|
|
For the sympathetic NS the preganglionic neuron releases what....and has what receptors?
|
releases Ach and postganglionic neuron has Ach receptors which are always excitatory
|
|
For the sympathetic NS the postganglionic nearon releases....
and has what receptors? |
releases NE,E and target organ has alpha and beta receptors which can be excitatory or inhibitory
|
|
For the parasympathetic NS the preganglionic neuron releases...
and has what receptors? |
releases Ach and postganglionic neuron has nicotinic ACh receptors which are always excitatory
|
|
For the parasympathetic NS the postganglionic neuron releases....
and has what receptors? |
releases ACh and the target organ has muscarinic ACh receptors which can be excitatory or inhibitory
|
|
What is dual innervation?
|
target is innervated by both para and sympathetic NS, have opposite effects on the target
|
|
What is autonomic tone?
|
target innervated by the sympathetic NS only, amount of stimulation determines the overall effect. Increased stimulation=vasoconstriction and decreased stimulation=vasodilation
|
