Smoking Lesson 1. Objectives 1. Students will know the basic anatomy and physiology of the lungs 2. Students will be able to describe the harmful effects.

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Presentation transcript:

Smoking Lesson 1

Objectives 1. Students will know the basic anatomy and physiology of the lungs 2. Students will be able to describe the harmful effects of tobacco use on the body.

Open Book Quiz Lesson #1 Pages Put your first and last name on the scantron. Under subject, write tobacco lesson 1 Under class: put the class period

What’s in a cigarette Nicotine: The addictive drug in tobacco leaves. Tar : Is a thick, sticky, dark fluid produced when tobacco burns. This tar consists of many cancer causing substances known as carcinogens Stimulant: Is a drug that increases the action of the central nervous system

What’s in a cigarette Carbon Monoxide: Is a colorless, odorless, poisonous gas in cigarette smoke that passes through the lungs and into the blood. The gas deprives the body’s tissues and cells of oxygen. It increases the risk of high blood pressure, heart disease and other circulatory problems.

Statistics from the American Lung Association Cigarette smoke contains over 4,800 chemicals, 69 of which are known to cause cancer. Secondhand smoke involuntarily inhaled by nonsmokers is responsible for approximately 3,000 lung cancer deaths annually. Approximately 1,100 kids become new, regular daily smokers each day. Stats from US News An older brother/sister that smokes raises the risk that the younger sibling will smoke by 6 times. Children of ex smokers or current smokers were found to have a 23-29% chance of becoming a smoker.

Short-Term Effects Brain chemistry changes: Nicotine causes the body to crave more of the drug. Users can experiences withdraws as soon as 30 minutes after last tobacco use Respiration & heart rate increases Taste buds are dulled & appetite is reduced Yellow teeth and smelly hair, skin, & clothes.

Video: How the circulatory system works

Long Term Effects A weakened immune system Coronary heart disease and stroke Arteriosclerosis: hardening of the arteries due to plaque build up from nicotine.

The Healthy Lung Anatomy & Physiology of the lungs.

Chronic Bronchitis Chronic bronchitis: is the inflammation and eventual scarring of the lining of the bronchial tubes. As the cilia become useless, tar from cigarette smoke builds up, which results in coughing and excessive mucus secretion.

Pulmonary Emphysema In emphysema, the fine dividing walls between the tiny air sacs break. The sacs balloon out to become large pockets of air with hard inflexible walls.

Lung Cancer Cancer is an area of uncontrolled cell growth that invades the surrounding tissue and destroys it. This is due to the build up of tar in the lungs.

Chronic Bronchitis & Pulmonary Emphysema

Effects of smoke on unborn children and infants Can impair fetal growth. Miscarriages Prenatal death Premature delivery Low birth weight Deformities Growth & Developmental problems throughout early childhood. Stillbirths

Interactive Study Guide hill.com/sites/dl/free/ /360002/In terActCh21Ls1.html hill.com/sites/dl/free/ /360002/In terActCh21Ls1.html

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