Archive | Pharmacology

Classification of Antiadrenergic Drugs | Pharmacology | Animals

After reading this article we will learn about the classification of antiadrenergic drugs These are the drugs which antagonize the pharmacological action of sympathomimetic agents or alter the function of sympathetic nervous system inside the body. Classification: On the basis of mechanism of action. 1. α-Adrenoceptor Antagonists: Phenoxy-benzamine: (i) Phenoxy-benzamine is a halo-alkyl-amine. It binds covalently to the α receptors [...]

By |2017-03-04T09:34:44+00:00March 4, 2017|Animals|Comments Off on Classification of Antiadrenergic Drugs | Pharmacology | Animals
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Neurohumoral Transmission: Meaning and Steps | Animals

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 [...]

By |2017-03-04T09:34:43+00:00March 4, 2017|Animals|Comments Off on Neurohumoral Transmission: Meaning and Steps | Animals
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Sympathetic and Parasympathetic Nerve Fibres | Pharmacology

This article will help you to differentiate between sympathetic and parasympathetic nerve fibres. Difference # Sympathetic Nerve Fibre: 1. They arise from thoraco-lumber (T1 to L3) region of the spinal cord. 2. Ganglia are nearer to CNS. The ratio of pre and postganglionic fibres is generally 1: 20 or more. So, the post ganglionic fibers are longer. 3. Neurotransmitters are [...]

By |2017-03-04T09:34:43+00:00March 4, 2017|Pharmacology|Comments Off on Sympathetic and Parasympathetic Nerve Fibres | Pharmacology
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