Anatomy
What muscle helps the lungs to expand and contract during breathing?
The diaphragm
What are the tiny air sacs in the lungs where gas exchange occurs?
Alveoli
What system in the body is responsible for taking in oxygen and expelling carbon dioxide?
The respiratory system
What is the part of the throat that serves as a passageway for both air and food?
Pharynx
What is the name of the tube that connects the throat to the lungs?
The trachea
What two gases are primarily exchanged in the alveoli?
Oxygen and carbon dioxide
Where does air get warmed and moistened before reaching the lungs?
The Nasal Cavity
What is the flap of tissue that prevents food from entering the trachea?
The epiglottis
What is the primary entry point for air into the respiratory system?
Nose
What gas do we inhale that is essential for our cells to produce energy?
Oxygen
What is the process of exchanging gases between the body and the environment called?
Respiration
What are the smaller branches of the bronchi called?
The bronchioles
What are the two main branches from the trachea that lead into the lungs?
Bronchi
What gas do we exhale as a waste product of respiration?
Carbon Dioxide
What is ventilation in the context of the respiratory system?
Ventilation is the movement of air in and out of the lungs
What is the name of the membrane that surrounds the lungs?
The pleura
What is the voice box that sits on top of the trachea called?
Larynx
What happens to the diaphragm during inhalation?
The diaphragm contracts
What is respiration in the context of the respiratory system?
Respiration is the process of gas exchange in the body
The epiglottis is open during ________________
and closed during ___________________.
Breathing, Eating