Gas Exchange Flashcards
What is the main function of the respiratory system?
To exchange oxygen and carbon dioxide between the body and the environment.
True or False: Oxygen is essential for cellular respiration.
True
What is the process of breathing in oxygen and breathing out carbon dioxide called?
Gas exchange
Where does gas exchange primarily occur in the respiratory system?
Alveoli
What is the name of the dome-shaped muscle beneath the lungs that helps with breathing?
Diaphragm
Fill in the blank: The bronchi branch into smaller tubes called ___________.
Bronchioles
What happens to the rib cage during inhalation?
It expands
What is the name of the process where oxygen is taken in and carbon dioxide is released?
Respiration
Which gas is transported in the blood by red blood cells?
Oxygen
What is the role of the cilia in the respiratory system?
To sweep mucus and debris out of the airways
True or False: The trachea is also known as the windpipe.
True
What is the term for the tiny air sacs in the lungs where gas exchange occurs?
Alveoli
Fill in the blank: The process of moving air into and out of the lungs is known as ____________.
Breathing
What is the name of the flap of cartilage that covers the opening of the trachea during swallowing?
Epiglottis
True or False: The left lung has three lobes, while the right lung has two lobes.
False
What is the term for the tiny blood vessels surrounding the alveoli where gas exchange occurs?
Capillaries
What is the name of the substance that lines the airways and traps dust and microbes?
Mucus
What is the medical term for difficulty breathing?
Dyspnea
True or False: The process of gas exchange is passive and does not require energy.
True
What is the term for the volume of air that moves in and out of the lungs during normal breathing?
Tidal volume
Fill in the blank: The bronchi divide into smaller tubes called ____________.
Bronchioles
What is the process of gas exchange between the blood and tissues of the body called?
Internal respiration
What is the name of the enzyme that breaks down carbon dioxide in the blood?
Carbonic anhydrase
True or False: The respiratory system is responsible for maintaining the body’s acid-base balance.
True
