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Respiratory System

Science

QuestionAnswer
Function of the human respiratory system. To exchange gases between the blood and the external environment.
Sends a signal to control breathing rate. Medulla.
True or False: The medulla sends a signal to increase breathing rate when there are high levels of oxygen in the body. False, when there are high levels of carbon dioxide in the blood.
What does breathing do? Moves air into and out of the lungs.
Ribs move up and out, diaphragm moves down. Inhalation.
Ribs drop, muscles relax, and the diaphragm moves up. Exhalation.
Lungs. Principle respiratory organs of the human body, elastic, secretes moisture through the pleural membrane.
Another name for the nose. Nasal cavity.
True or False: Air entering the nose is filtered, warmed, and moistened. True.
Mucus. Sticky fluid that traps bacteria, dust, and other particles in the air.
Another word for the throat. Pharynx.
Passageway for air as it passes to the trachea. Pharynx.
Voice box, contains the vocal chords whose vibrations make speech possible. Larynx.
The epiglottis is a flap of tissue that covers the opening of the _____________ during the act of swallowing to prevent food from entering the lungs. Larynx.
Windpipe that connects the pharynx to the bronchi, which is made up of cartilaginous rings, lined with cilia and mucus. Trachea.
Connects the trachea with the bronchioles. Bronchi.
Cartilage-ringed tubes, connect the bronchi with the alveoli. Bronchioles.
Functional units for respiration in the lungs. Alveoli.
Another term for lungs. Air sacs.
Severe allergic reaction in which the contraction of the bronchioles makes breathing difficult. Asthma.
Inflammation of the linings of the bronchial tubes. Bronchitis.
Lung disorder in which the walls of the air sacs break down and there is less respiratory surface in the lungs. Emphysema.
Disease in which tumors form in the lungs as a result of irregular and uncontrolled cell division. Lung cancer.
Tumor. Masses of tissue.
Condition in which the alveoli become filled with fluid, preventing the exchange of gases in the lungs. Pneumonia.
Created by: emarciante9
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