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The Breathing System

QuestionAnswer
Name a breathing system related disorder and its symptoms Asthma-wheezing, coughing, shortness of breath, asthma attacks
Name a cause of the breathing related disorder you studied and the medication for it Genetic, pollution, allergens, pollen- inhaler (opens trachea and bronchi)
Where in the body are the lungs located? The thoracic cavity
What are three features of alveoli that help with gas exchange? Only one cell thick (short diffusion pathway), large surface area, good blood supply (is surrounded by capillaries)
Identify the gas which controls the rate of breathing CO2 (heart rate increases when there's to much CO2 in the bloodstream)
Describe the process of inhalation Air comes in through the trachea into the lungs. Ribcage moves up and out while intercostal muscles contract. Diaphragm contracts and flattens. Air pressure in thoracic cavity decreases. Volume of the lungs increases.
What happens to the ribcage during inhalation and exhalation? Inhalation: Ribs pulled up and out Exhalation: Ribs pushed down and in
What happens to the intercostal muscles during inhalation and exhalation? Inhalation: They contract Exhalation: They relax
What happens to the diaphragm during inhalation and exhalation? Inhalation: Contracts- shortens and flattens down Exhalation: Relaxes and moves upwards into a dome shape
What happens to the pressure in the thoracic cavity during inhalation and exhalation? Inhalation: air pressure drops Exhalation: Air pressure increases
What happens to the volume of the lungs during inhalation and exhalation? Inhalation: volume increases Exhalation: volume decreases
What surrounds the trachea? C-shaped ring s of cartilage
What is the difference between the pharynx and the larynx? Pharynx is your throat. Larynx is your voicebox.
Created by: sjbuzb
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