9 The Respiratory System

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Presentation transcript:

9 The Respiratory System Lesson 9.1: Functions and Anatomy of the Respiratory System Lesson 9.2: Respiration: Mechanics and Control Lesson 9.3: Respiratory Disorders and Diseases

Anatomy of the Respiratory System

Anatomy of the Respiratory System pharynx tonsils larynx epiglottis trachea C rings

Anatomy of the Respiratory System bronchi primary bronchi bronchioles alveoli Surfactant

Anatomy of the Respiratory System lungs pleural sac parietal pleura visceral pleura

The Upper Respiratory Tract

Respiration: Mechanics and Control Chapter 9: The Respiratory System Lesson 9.2 Respiration: Mechanics and Control

Respiration AKA breathing air moves from pressure to pressure 4 tasks: pulmonary ventilation external respiration respiratory gas transport internal respiration

Respiration Boyle’s law volume of a gas increases, pressure of the gas decreases inspiration (inhalation) expiration (exhalation)

Respiration

Nonrespiratory Air Maneuvers

pons and medulla oblongata Control of Breathing neural factors pons and medulla oblongata chemical factors central chemoreceptors peripheral chemoreceptors mechanoreceptors

Control of Breathing

Respiratory Disorders and Diseases Chapter 9: The Respiratory System Lesson 9.3 Respiratory Disorders and Diseases

Upper Respiratory Tract Illnesses

Upper Respiratory Tract Illnesses avoiding URIs cover when sneezing and coughing wash hands don’t touch hands to eyes, nose, mouth influenza vaccine icyimage/Shutterstock.com

Lower Respiratory Tract Illnesses acute bronchitis inflammation pneumonia infection tuberculosis

Chronic Obstructive Pulmonary Diseases causes smoking living with COPD stop smoking purse-lipped breathing

Chronic Obstructive Pulmonary Diseases emphysema decreased lung surface area pink puffers chronic bronchitis inflammation obstructs airways blue bloaters

Asthma asthma attack inflamed and narrowed airways bronchospasms caused by allergens or irritants treatment relaxes muscles to expand airways xavier gallego morel/Shutterstock.com

Lung Cancer more deaths from lung cancer (than others) non-small cell lung cancer more common lung cancer small cell lung cancer Chain smokers

Carbon Monoxide Poisoning Oxygen in bloodstream is replaced with CO Symptoms Headache Dizziness, nausea, vomiting Confusion Blurred vision Loss of consciousness Treatment

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