Respiratory System Flashcards
What is the primary function of the respiratory system?
To facilitate gas exchange, primarily oxygen intake and carbon dioxide removal.
True or False: The diaphragm is a muscle that aids in breathing.
True
Fill in the blank: The ________ is the main organ of the respiratory system.
lung
What is the name of the air passage that connects the throat to the lungs?
trachea
Which part of the respiratory system is responsible for the exchange of gases?
alveoli
What are the tiny hair-like structures that line the respiratory tract called?
cilia
Multiple Choice: What is the normal respiratory rate for a healthy adult at rest?
12-20 breaths per minute
What is the term for the process of breathing in?
inhalation
True or False: The left lung has three lobes.
False
What is the primary gas that is expelled from the body during exhalation?
carbon dioxide
Fill in the blank: The ________ separates the thoracic cavity from the abdominal cavity.
diaphragm
What is the role of surfactant in the lungs?
To reduce surface tension in the alveoli and prevent collapse.
Multiple Choice: Which of the following structures is NOT part of the upper respiratory tract?
bronchi
What is the term for the inflammation of the airways typically caused by an allergic reaction?
asthma
True or False: Hemoglobin is responsible for transporting oxygen in the blood.
True