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STEP 1 Neurology
Integrated information from the first year of medical school
7
Medical
Graduate
03/08/2018

Additional Medical Flashcards

 


 

Cards

Term
Names some agonists and antagonists for αreceptors
Definition

agonists:

Norepinephrine, Phenylephrine

 

antagonists:

Phenoxybenzamine, Phentolamine, Prazosin

Term
Names some agonists and antagonists for α2 receptors
Definition

agonists:

Clonidine

 

antagonists:

Yohimbine

Term
Names some agonists and antagonists for βreceptors
Definition

agonists:

Norepinephrine, Epinephrine, Isoproternol, Dobutamine

 

antagonists:

Propranolol, Metoprolol 

Term
Names some agonists and antagonists for βreceptors
Definition

agonists:

Epniphrine, Norepinephrine, Isoproternol, Albuterol

 

antagonists:

Propranolo, Butoxamine

Term
Names some agonists and antagonists for nicotinic receptors
Definition

agonists:

ACh, Nicotine

 

antagonists:

Curare, Hexamethonium

Term
Names some agonists and antagonists for muscarinic receptors
Definition

agonists:

ACh, Muscarine

 

antagonists:

Atropine

Term
What happens when light strikes the photoreceptor cell of the retina?
Definition

all 11-cis rhodopsin is converted to all-trans rhodopsin

 

The G protein transducin is activated

 

phosphodiesterase is activated, and stimulates the breakdown of cGMP

 

decreased cGMP levels cause Na+ gates to close, leading to the hyperpolarization of the photoreceptor

 

an inhibitory or stimulatory neurotransmitter is released

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