Cholinergic and Noradrenergic Transmission Flashcards
Sympathetic ANS
Fight or flight
Parasympathetic ANS
Rest and digest
Homeostasis
Maintains constant internal environment/visceral organs
White Ramus Communications
Sympathetic preganglionic axons enter the sympathetic chain ganglion here
Grey Rami Communicans
Postganglionic axons exit the sympathetic chain through here
Rami communicans
The communicating nerve branch between the sympathetic ganglions and spinal nerve
Which fibers are adrenergic
All postganglionic sympathetic fibers
2 classes of noradrenaline receptors
Alpha-adrenergic and beta-adrenergic receptors
Alpha 1 adrenergic receptor
Smooth muscle, iris, gut, uterus, salivary glands, bladder
Alpha 2 adrenergic receptor
Presynaptic, smooth muscles, gut, brain
Beta 1 adrenergic receptor
Heart
Beta 2 adrenergic receptor
Uterus, airway smooth muscle, smooth muscle
Beta 3 adrenergic receptor
Adipose tissue
Heart adrenergic receptor type and response
B1, acceleration, contractility increases
Arterioles first adrenergic receptor type and response
A1, A2, constriction