Related Experiment Video
Updated: Jun 12, 2026

Methods to Evaluate Cytotoxicity and Immunosuppression of Combustible Tobacco Product Preparations
Published on: January 10, 2015
[Tobacco: sacred and profane as regards smoke]
1Service d'oto-rhino-laryngologie et chirurgie cervico-faciale de l'hôpital Adriano Jorge, de l'Université de l'état d'Amazonas, Brésil. joaoboscobotelho@gmail.com
Abstract:
Blowing smoke was a sacred habit among the American Indian people in Brazil at the arrival of the first Europeans. That remains a practice of prevention and recovery among the remote people of Amazon and Rio Negro. Addiction to smoking was propagated by Nicot in Europe for the pleasure it procures but it became such real plague of the modern society that every country has to struggle against its given attractive image of a way of life.
Related Concept Videos
Stimulants
Cocaine can be administered via snorting, injection, or smoking. It primarily functions by blocking the reuptake of dopamine, resulting in a euphoric high characterized by an intense sensation of happiness and...
Other Pulmonary Disorders
The Bronchial Tree
The trachea, commonly known as the windpipe, is a tube that connects the larynx (voice box) to the bronchi. At a point called the carina, it bifurcates into two primary bronchi. The right primary bronchus is wider, shorter, and more vertical than the left primary...
The Respiratory System
Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features
Drugs Acting on Autonomic Ganglia: Stimulants
Ganglionic stimulants activate NM nicotinic receptors in autonomic ganglia, falling into two categories: nicotine mimetics [e.g., lobeline, dimethylpiperazine, tetramethylammonium] and muscarinic receptor agonists [e.g., muscarine, methacholine]. The first category's action is rapid and blocked by nicotinic receptor antagonists, while the second category's action is delayed and blocked by atropine-like agents. Nicotine, an alkaloid, affects the heart rate by stimulating sympathetic or...

