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Receptors of the ANS Named after nerve types that innervates them
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Transcript of Receptors of the ANS Named after nerve types that innervates them
1391 Isfahan Medical Faculty, Anatomy and Biomedical Sciences Department
1
Receptors of the ANSNamed after nerve types that innervates them
Cholinergic Receptors:
The receptors on which Ach acts
Nicotinic• NM
• NN Muscarinic• M1 – 15
Adrenergic Receptors:
The receptors on which NEP and EP act α• α1
• α2 ß• ß1
• ß2 D• D1• D2
1391 Isfahan Medical Faculty, Anatomy and Biomedical Sciences Department 2
Cholinergic receptors
1.Nicotinic : The toxin obtained from
tobacco leaves which activates these receptors and always has a stimulatory action
2. Muscarinic : The poison from a mushroom
which activates these receptors at the effector site
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Cholinergic receptors
1.Kinds of nicotinic cholinoreceptors : ACh receptors on the adrenal
medulla ACh receptors on the postganglionic
neuron at the synapse between pre- and postganglionic neurons
ACh receptors on skeletal muscle
2.Muscarinic cholinoreceptor Stimulatory Inhibitory
1391 Isfahan Medical Faculty, Anatomy and Biomedical Sciences Department
4
Adrenergic receptors
alpha-1 : excitation (most common alpha)
alpha-2 : inhibition
beta-1 : excitation
beta-2 : inhibition (most common beta)
1391Isfahan Medical Faculty, Anatomy and
Biomedical Sciences Department