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Autonomic Receptor Introduction
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67
Medical
Professional
08/10/2011

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Cards

Term
What does the extent of receptor response depend on?
Definition
Extent of response depends on dose of drug and number of receptors stimulated or inhibited
Term
In Somatic Nervous System, what is the neurotransmitter?
Definition
Ach
Term

In Somatic Nervous System, what is the receptor type?

Definition
Cholinergic
Term

In Sympathetic Nervous System, what is the preganglionic neurotransmitter?

Definition
Ach
Term

 

In Sympathetic Nervous System, what is the postganglionic neurotransmitter?

 

Definition
NE
Term

 

In Parasympathetic Nervous System, what is the preganglionic neurotransmitter?

 

Definition
Ach
Term

 

In Parasympathetic Nervous System, what is the postganglionic neurotransmitter?

 

Definition
Ach
Term

 

In Parasympathetic Nervous System, what is the preganglionic receptor type?

 

Definition
Cholinergic
Term

 

In Parasympathetic Nervous System, what is the postganglionic receptor type?

 

Definition
Cholinergic
Term

 

In Sympathetic Nervous System, what is the preganglionic receptor type?

 

Definition
Cholinergic
Term

 

In Sympathetic Nervous System, what is the postganglionic receptor type?

 

Definition
Adrenergic
Term
How is signal induction terminated between Ach and Cholinergic receptor?
Definition
 destruction by acetylcholinesterase into acetate and choline via binding to anionic and esteratic sites of enzyme
Term
How is muscarinic receptors on all effector organs classified? 
Definition
M1, M2, M3...
Term
How is Nicotinic receptor on all ganglia and adrenal medulla classified as?
Definition
NN
Term
How is Nicotinic receptor on skeletal muscles classified as?
Definition
NM
Term
What happens when muscarinic receptor is stimulated?
Definition

stimulation of phospholipase C or PLC and increase in IP3, DAG (most) 

(blood vessels vasodilatation →  NO →c-GMP) 

                                     

(heart – decrease adenylyl cyclase and cAMP) 

Term

What happens when nicotinic receptor is stimulated?

Definition
Opening of cation channels
Term

How is signal transduction terminated between NE and Adrenergic receptor?

Definition
active re-uptake back into nerve terminal (membrane, granules)
Term
How is a1 receptor stimulated?
Definition
stimulation of different phospholipases and increase in IP3, DAG, Ca
Term
How is a2 receptor stimulated?
Definition
inhibition of adenylyl cyclase and decreases in c-AMP
Term
How is b1 and b2 stimulated?
Definition
stimulation of adenylyl cyclase and increase in c-AMP
Term
What are the sympathetic receptor of eye?
Definition
a1, b2
Term

What are the sympathetic receptor of lung?

Definition
b2
Term

What are the sympathetic receptor of heart?

Definition
b1 > b2
Term

What are the sympathetic receptor of blood vessels?

Definition
a1, b2
Term

What are the sympathetic receptor of stomach?

Definition
a1, b2
Term

What are the sympathetic receptor of intestine?

Definition
a1, b2
Term

What are the sympathetic receptor of bladder?

Definition
a1, b2
Term

What are the sympathetic receptor of adrenal medulla?

Definition
Nicotinic 
Term

What are the sympathetic receptor of male sex organ?

Definition
a1
Term

What are the sympathetic receptor of pancreas?

Definition
a2
Term

What are the sympathetic receptor of liver?

Definition
a1, b2
Term

What are the sympathetic receptor of uterus?

Definition
b2
Term
What is the action of a1 in eye?
Definition

Contraction of radial 

muscle of iris (mydriasis)

Term
What is the action of b R in eye?
Definition

increased fluid inflow from & weak relaxation of ciliary 

body

Term

What is the action of b2 R in lung?

Definition
Relaxation of bronchial muscles (increased airflow)
Term
What is the action of b1/2 R in heart?
Definition

SA n.: increase in HR,  

AV n.: increase in conduction

Ventricle: increase in contractility

Term
What is the action of a1 R in blood vessels?
Definition

Constriction (skin, mucosa, glands, kidney) 

[increase in BP]

Term

What is the action of b2 R in blood vessels?

Definition
Dilation (skeletal muscle) [decrease in BP]
Term

 

What is the action of a1 & b2 R in stomach?

 

Definition
Decrease in motility, tone & secretion
Term
What is the action of a1 & b2 R in intestine?
Definition
Decrease in motility & tone (constipation)
Term

What is the action of a1 & b2 R in bladder?

Definition
Relaxation (urinary hesitancy, retention)
Term
What is the sympathetic response of salivary, sweat, respiratory glands?
Definition
Localized secretion
Term
What is the sympathetic response of adrenal medulla?
Definition
Epi release via nicotinic R
Term
What is the a1 R response in male sex organ?
Definition
Ejaculation
Term

What is the a2 R response in pancreas?

Definition
Decreased secretion of insulin (glucose)
Term

What is the a1 & B2 R response in liver?

Definition
Gluconeogenesis, glycogenolysis
Term

What is the B2 R response in uterus?

Definition
relaxation
Term
What is the muscarinic R response in eye?
Definition

Constriction of sphincter muscles of iris (miosis) 

Constriction of ciliary body (for near vision) 

[[increase in outflow through trabecular meshwork ]]

Term

What is the muscarinic R response in lung?

Definition

Constriction of bronchial muscles (decreased 

airflow)

Term

What is the muscarinic R response in heart?

Definition
Decrease in heart rate and contractility
Term

 

What is the muscarinic R response in blood vessels?

 

Definition
Dilation
Term
What is the muscarinic R response in stomach?
Definition
Increase in motility, tone, and secretion
Term

What is the muscarinic R response in intestine?

Definition
Increase in motility and tone (cramps, diarrhea)
Term

 

What is the muscarinic R response in bladder?

 

Definition
Contraction and relaxation (micturition)
Term
What is the muscarinic R response in sweat, salivary, respiratory glands?
Definition
 Profuse secretion
Term

What is the muscarinic R response in male sex organ?

Definition
Erection
Term

What is the muscarinic R response in uterus?

Definition
Variable
Term
What is direct drug action?
Definition
direct action on receptor
Term

What is indirect drug action?

Definition
by increasing or decreasing synaptic NT levels
Term

 

What is mixed drug action?

 

Definition
Direct and indirect
Term
What are the 5 classification of autonomic drugs?
Definition

Sympathomimetic or adrenergic drugs 

Sympatholytic or adrenergic blocking drugs 

Parasympathomimetic or cholinergic drugs Parasympatholytic or cholinergic blocking drugs Neuromuscular blocking drugs

Term
What are Sympathomimetic or adrenergic drugs like?
Definition
Agonist
Term
What are  Sympatholytic or adrenergic blocking drugs like?
Definition
Antagonist
Term
What are Parasympathomimetic or cholinergic drugs like?
Definition
Agonist
Term
What are Parasympatholytic or cholinergic blocking drugs like?
Definition
Antagonist
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