3.3.1 Gasping For Air

Question: Anatomy of Breathing

Answer: - When we inhale, we’re breathing in oxygen (O2)

• When we exhale, we’re breathing out carbon dioxide (CO2)

• - Inhaling expands lungs/makes them larger

• - Exhaling shrinks the lungs/makes them smaller

• Question: Role of Muscles in Respiration

• Answer: Allows the lungs to contract, which helps you breathe

• Question: What is asthma?

• Answer: Respiratory condition marked by spasms in the branch of the lungs, causing difficulty in breathing; usually results from an allergic reaction or other forms of hypersensitivity

• Question: Characterizations of Asthma

• Answer: - Coughing

• - Wheezing

• - Shortness of Breath

• Question: Respiratory System Structure

• Answer: http://www.newhealthadvisor.com/Anatomy-of-Respiratory-System.html

• Question: Function of Nose and Nasal Cavity

• Answer: - Nose: used to inhale air into the body

• - Nasal Cavity: warms the air as it enters, acting as filtration and purifying the air by removing any dust, pollen, and other contaminants, before it passed to the inner body

• Question: Function of Mouth

• Answer: - Allows more inhalation

• - Air also has less distance to travel, meaning more air can enter your body and be used faster

• Question: Function of Pharynx

• Answer: - Used for swallowing food as well as breathing

• - Epiglottis ensures that air can pass into the trachea, and that food enters the esophagus

• Question: Function of Larynx

• Answer: - Allows us to speak

• - Acts as a defense mechanism —-> If any food passes into the esophagus when swallowing, the larynx produces a strong cough reflex

• Question: Function of Trachea

• Answer: - Provides a clear and unhindered airway for air to enter and exit the lungs

• - Inside the trachea, small hairs reside upon the inner walls —-> These hairs catch dust and other contaminants from inhaled air, which are later expelled via coughing