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Download The Respiratory System - Mercer Island School District
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The Respiratory System Period 4 Ella, Carmen, Michael, John Main Organs (pt. 1) Nose: The nose is the primary opening for the respiratory system, allowing air into the body Mouth: The mouth, also referred to as the oral cavity, is the secondary exterior opening, working alongside the nose. Pharynx: The pharynx, also called the throat, is a funnel of muscle that extends from the respiratory openings to the esophagus and larynx. Main Organs (pt. 2) Larynx: Also known as the voice box, the larynx can be found below the pharynx, in the anterior portion of the neck. Trachea: The Trachea, also known as the wind pipe, is a tube made of cartilage rings that are lined with pseudostratified ciliated columnar epithelium. Bronchi: The bronchi are two tubes stemming off of the end of the trachea. Each tube is connected to a lung. Main Organs (pt. 3) Diaphragm: The diaphragm is an important muscle of respiration which is found beneath the lungs. Lungs: The air travels to the lungs where the take in oxygen and expel carbon dioxide Diseases and Disorders that Affect the Respiratory System ● ● ● Asthma ○ A condition where a person’s airway become inflamed, narrow, and produces extra mucus which restricts airflow to a person’s lungs ■ Treated with an inhaler Lung Cancer ○ A cancer that occurs in a person’s lungs most often affecting smoker ■ Treated with chemotherapy and surgery Pneumonia ○ An infection that fills the air sacs in one or both lungs with fluid ■ Treated with antibiotics/vaccine What causes Inhalation? -The diaphragm creates negative space in the chest cavity -With negative space in the chest cavity, the airways are able to stay open -When you inhale, the lungs expand, which creates a low pressure environment -Through this, the diaphragm becomes vacuum like, and gravity forces air down the air passage and into the lungs. The Respiratory System and the Circulatory System -The respiratory system and the circulatory system are connected at the lungs -The circulatory system needs oxygen from the lungs to pump the blood throughout the body, and the respiratory system supplies the oxygen, and helps the oxygen from the air into the bloodstream -The systems are linked, because without the distribution of oxygen throughout the body, the muscles and tissues would not function Sources http://www.livescience.com/22616-respiratory-system.html http://www.innerbody.com/anatomy/respiratory https://en.wikibooks. org/wiki/Human_Physiology/The_respiratory_system#Homeostasis_and_Gas_Exchange http://www.newhealthadvisor.com/Anatomy-of-Respiratory-System.html https://prezi.com/wjvztu9bfe5q/relationship-between-circulatory-and-respiratory-system/ https://www.boundless.com/biology/textbooks/boundless-biology-textbook/the-respiratory-system39/breathing-221/the-mechanics-of-human-breathing-838-12083/
