Anatomy
This is the main muscle responsible for breathing, located beneath the lungs.
What is the diaphragm?
This is the term for breathing in, or inhaling air into the lungs?
What is inspiration?
This gas makes up approximately 21% of the air we breathe and is essential for cellular respiration.
What is oxygen?
This common condition causes inflammation and narrowing of the airways, often triggered by allergens or exercise.
What is asthma?
This involuntary reflex helps clear irritants from the airways and can spread respiratory illness.
What is a cough (or sneeze)?
These two spongy organs are the primary organs of the respiratory system.
What are the lungs?
When you exhale, the diaphragm does this- it moves up or down?
What is up (relaxes and moves upward)?
This waste gas is expelled from the body during exhalation.
What is carbon dioxide?
This highly contagious respiratory illness is caused by a virus and commonly causes fever, cough, and body aches.
What is influenza?
This is the medical term for the throat, which serves as a passageway for both food and air.
What is the pharynx?
The flap of cartilage covers the trachea during swallowing to prevent food from entering the airway.
What is the epiglottis?
This term describes the process of gas exchange between the lungs and the bloodstream.
What is external respiration?
Oxygen binds to this protein found in red blood cells for transport throughout the body.
What is hemoglobin?
This chronic lung disease, strongly associated with smoking, involves destruction of the alveoli walls.
What is emphysema?
Also called the "voice box", this structure in the throat contains the vocal cords.
What is the larynx?
The trachea divides into these two structures, one leading to each lung.
What are the bronchi?
This is the term for the amount of air inhaled or exhaled in a single normal breath.
What is tidal volume?
This is the name of tiny air sacs in the lungs where gas exchange actually takes place.
What are alveoli?
This term describes a lung infection causing the alveoli to fill with fluid or pus, making breathing difficult.
What is pneumonia?
This is the term for the sheet of connective tissue that surrounds each lung and lines the chest cavity.
What is the pleura?
The right lung this this many lobes, while the left lung has one fewer to make room for the heart.
What is three (right) and two (left)?
This part of the brain stem is primarily responsible for controlling the automatic rhythm of breathing.
What is the medulla oblongata?
Gas exchange in the alveoli occurs by this process, where gases move from an area of high concentration to low concentration.
What is diffusion?
This progressive lung disease is actually an umbrella term that includes both chronic bronchitis and emphysema.
What is COPD (Chronic Obstructive Pulmonary DIsease)?
A healthy adult at rest takes approximately this many breaths per minute, a measurement known as respiratory rate.
What is 12 - 20 breaths per minute?