Drug Exam 3 questions and answers

The most common type of oral smokeless tobacco in the United States is ________, and a small pinch is dipped out of the can and placed beside the gum, often behind the lower lip moist snuff Snuff and chewing tobacco do contain potent carcinogens, including high levels of ________ tobacco-specific nitrosamines The biggest health concern for users of smokeless tobacco has been: cancer of the mouth, pharynx, and esophagus As a potent poison, nicotine causes death by: paralysis of respiration muscles What is the major commercial species of Nicotiana that is grown for tobacco products? Nicotiana tobacum ________ is defined as a whitening and thickening of the mucous tissue in the mouth, and it is considered to be a precancerous tissue change Leukoplakia People who switch to low-tar and nicotine brand cigarettes: People who switch to low-tar and nicotine brand cigarettes: In 1993, the Environmental Protection Agency declared that: secondhand smoke is a known carcinogen that increases lung cancer risk Nicotine acts in the brain by first stimulating and then blocking cholinergic receptors Nicotine history First Cultivated by Native Americans in the 1400s, Medical properties of Nicotine were recognized in the 1500s, in the 1600s-1700s still used as a medicine but people realized the effects it had on reproduction.