After reading this article you will learn about the meaning and steps of Neurohumoral Transmission (NHT). Meaning of Neurohumoral Transmission (NHT): Neurohumoral transmission refers to the transmission of impulse through synapse and neuro-effector junction by the release of humoral (chemical) substances. The term 'conduction' stands for the passage of an impulse along an axon or muscle fibre. Almost all autonomic [...]
After reading this article we will learn about the classification of cholinergic drugs. These are the drugs which produce Ach-like actions, either directly by interactÂing with the cholinergic receptors or indirectly by increasing availability of Ach at these sites. Classification: On the basis of mechanism of action. Organ Selectivity: (i) Ach → all cholinergic organs, more preferably on GIT. (ii) [...]
These drugs block muscarinic receptors only. That's why, it is more appropriate to term them as anti-muscarinic agents. They are also called as atropine-like drugs. Classification of Anticholinergic Drugs: (A) On the Basis of Source: (B) On the Basis of Mode of Action: Sources and Chemistry of Anticholinergic Drugs: Atropine is obtained from Atropa belladonna, and Datura stramonium. Scopolamine is [...]