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 [...]
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) [...]
After reading this article you will learn about the anatomy and physiology of Autonomic Nervous System (ANS). Various body activities are controlled by the nervous system. This is achieved by controlling the contraction of skeletal muscles throughout the body, contraction of smooth muscles in the organs, and secretion of both exocrine and endocrine glands in many parts of the body. [...]