Podcast
Questions and Answers
What type of receptor responds to muscarins and acetylcholine?
What type of receptor responds to muscarins and acetylcholine?
- Nicotinic Receptor
- M2 Receptor
- NN Receptor
- Muscarinic Receptor (correct)
Which cholinergic receptor is associated with the heart?
Which cholinergic receptor is associated with the heart?
- M1 Receptor
- NN Receptor
- M2 Receptor (correct)
- NM Receptor
What is the primary function of NM receptors?
What is the primary function of NM receptors?
- Secretion of epinephrine
- Contraction of smooth muscle
- Contraction of skeletal muscle (correct)
- Regulation of glandular function
Which receptor type is linked to secretion of epinephrine?
Which receptor type is linked to secretion of epinephrine?
Which cholinergic receptor type responds to nicotine?
Which cholinergic receptor type responds to nicotine?
Flashcards
Muscarinic Receptors
Muscarinic Receptors
Cholinergic receptors that respond to muscarine and acetylcholine. They are further divided into subtypes (M1, M2, M3) affecting different tissues.
M1 Muscarinic Receptors
M1 Muscarinic Receptors
Type of muscarinic receptor located on nerve endings.
M2 Muscarinic Receptors
M2 Muscarinic Receptors
Type of muscarinic receptor found in the heart and some nerve endings.
M3 Muscarinic Receptors
M3 Muscarinic Receptors
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Nicotinic Receptors
Nicotinic Receptors
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NN Nicotinic Receptor
NN Nicotinic Receptor
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NM Nicotinic Receptor
NM Nicotinic Receptor
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Study Notes
Cholinergic Receptors Subdivided
- Cholinergic receptors are divided into two types: muscarinic and nicotinic.
Muscarinic Receptors
- Respond to muscarinic substances and acetylcholine (ACh).
- Subtypes include:
- M1: nerve endings
- M2: heart and some nerve endings
- M3: smooth muscle, glands, and endothelium
Nicotinic Receptors
- Respond to nicotine and acetylcholine (ACh).
- Subtypes include:
- NN: autonomic ganglia, causing secretion of epinephrine
- NM: neuromuscular end plate, causing contraction of skeletal muscle
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