Histamine, a potent chemical mediator, is synthesized and stored in various cells like mast cells and basophils. It is involved in allergic reactions, immune responses, and neurotransmission in the central and autonomic nervous systems. This substance is released in response to stimuli like tissue i

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Learn about the types, locations, and actions of cholinergic receptors, the mechanism of action of direct-acting cholinomimetics, pharmacokinetics of cholinergic drugs, and the pharmacological actions and uses of cholinomimetics. Explore the roles of nicotinic and muscarinic receptors in the nervous

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Adrenergic transmission involves the release of neurotransmitters such as norepinephrine, dopamine, and epinephrine at synapses or neuroeffector junctions. These neurotransmitters, known as catecholamines, play crucial roles in transmitting impulses in the sympathetic nervous system and central nerv

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Cholinergic neurons play a vital role in neurotransmission by utilizing acetylcholine (ACh) as a neurotransmitter. This neurotransmission involves steps like synthesis, storage in vesicles, release, receptor binding, degradation, and recycling of choline and acetate. Choline acetyltransferase cataly

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Nitric oxide (NO), a vital molecule formed from arginine, plays diverse roles in the body including vasodilation, neurotransmission, platelet regulation, and immune response. Its formation involves a complex enzyme called nitrogen oxide synthase. Various inhibitors and clinical implications, such as

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Cholinergic transmission plays a crucial role in neurohumoral signaling, involving the release of acetylcholine at synapses and neuroeffector junctions. Dr. Rashmi Rekha Kumari explains the synthesis, storage, release, and catabolism of acetylcholine, highlighting the role of choline acetyl transfer

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Adrenergic neurotransmission, mediated by norepinephrine, dopamine, and epinephrine, plays a crucial role in various physiological processes. This process involves synthesis, storage, release, and termination of catecholamines like norepinephrine and epinephrine. The intricate mechanisms of neurotra

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Nitric oxide (NO), a vital molecule formed in the body from arginine, plays diverse roles such as vasodilation, neurotransmission, platelet inhibition, and immune response mediation. It is essential for regulating blood flow, maintaining blood pressure, and muscle relaxation. Various inhibitors impa

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