ANS second page Flashcards
Cholinergic Agonists function?
promote the activation of cholinergic transmission by
- activation of cholinergic receptors
- prevent the acetylcholine degradation
2 receptors of Cholinergic Agonists
Muscarinic - acts on visceral organs
Nicotinic (neural or neuromuscular)
Neural - found on the post synaptic neuros of both sympathetic and parasymp
Nueromuscular - found on skeletal muscles
Cholinergic receptors are _ proteined receptors?
G
The effect of cholinergic receptors are mediated by 3 intracellular secondary messenger?
IP3
DAG
CGMP
Drugs under Direct Acting Choline Esters?
ABCM Acetylcholine Carbachol Metacholine Bethanecol
Definition of Quarternary Ammonium Group
poorly absorbed in the CNS
Explain the degradation of Acetylcholine and the drugs resistant to acetylcholinesterase
Acetylcholine is easily degraded by acetylcholinesterase (short half life)
Methanecol, bethanecol, carbachol = resistant to acetylcholinesterase
Drugs under Cholinomimetic Alkaloids
LMNP Lobeline Muscarine Nicotine Pilocarpine
Nicotine effects?
Has more CNS effect than skeletal muscle effect