General Peripheral and Central Nervous System Review Flashcards
What is/are the neurotransmitter(s) of the sympathetic nervous system?
ACh at ganglionic
Norepinephrine at receptor
What is/are the neurotransmitter(s) of the parasympathetic nervous system?
Each at all sites
What are the receptors of the sympathetic nervous system? AKA the adrenergic receptors.
Alpha, beta and dopaminergic
What are the receptors of the parasympathetic nervous system? AKA the cholinergic receptors.
Muscarinic and nicotinic
Stimulation of nicotinic receptors result in …
muscle contraction at the skeletal muscle or excitation in the CNS.
How many types of muscarinic receptors are there?
5, M1-M5
Where are M2 and M3 receptors found?
M2 = heart M3 = bronchial and vascular smooth muscle, mucus glands and mast cells
Activation of M2 receptors results in…
Bradycardia
Activation of M3 receptors results in…
Bronchoconstriction
Increased mucus production
Mast cell degranulation
Where are alpha 1 and alpha 2 receptors found?
alpha 1 = peripheral vascular smooth muscle
alpha 2 = more centrally located
Activation of alpha 1 receptors results in…
vasoconstriction
Activation of alpha 2 receptors results in…
less norepinephrine release and vasodilation
Where are beta 1 and beta 2 receptors found?
B1 = heart B2 = bronchial and vascular smooth muscle
Activation of beta 1 receptors results in…
increase HR and contractility
Activation of beta 2 receptors results in…
vasodilation and bronchodilation
