respiratory sys Flashcards
(27 cards)
What is the primary function of the respiratory system?
To facilitate the exchange of oxygen and carbon dioxide.
True or False: The diaphragm is a muscle that aids in breathing.
True
What are the main organs involved in the respiratory system?
Nose, trachea, bronchi, lungs, and diaphragm.
Fill in the blank: The process of breathing in is called __________.
Inhalation
What is the purpose of the alveoli?
To allow gas exchange between the air and the blood.
Multiple Choice: Which structure is responsible for the voice production?
Larynx
What is the role of the nasal cavity in respiration?
To warm, moisten, and filter the air entering the respiratory system.
True or False: The right lung has three lobes.
True
What is the term for the tiny hair-like structures that help filter the air in the respiratory system?
Cilia
Fill in the blank: The trachea divides into two __________.
Bronchi
What is tidal volume?
The amount of air inhaled or exhaled during normal breathing.
Multiple Choice: Which gas is primarily responsible for stimulating breathing?
Carbon dioxide
What is the difference between external and internal respiration?
External respiration is the exchange of gases between the lungs and blood; internal respiration is the exchange of gases between blood and body cells.
True or False: The respiratory system is involved in the regulation of blood pH.
True
What is the function of surfactant in the lungs?
To reduce surface tension in the alveoli and prevent collapse.
Fill in the blank: The __________ is the muscular structure that separates the thoracic cavity from the abdominal cavity.
Diaphragm
What are the two phases of breathing?
Inhalation and exhalation.
Multiple Choice: Which part of the brain controls the rate of breathing?
Medulla oblongata
What is the primary gas exchanged during respiration?
Oxygen and carbon dioxide.
True or False: The left lung is smaller than the right lung.
True
What is the function of the pleura?
To provide lubrication and reduce friction between the lungs and chest wall.
Fill in the blank: The __________ is the windpipe that connects the larynx to the bronchi.
Trachea
What happens during exhalation?
The diaphragm and intercostal muscles relax, reducing the volume of the thoracic cavity and pushing air out.
Multiple Choice: Which of the following is NOT a part of the respiratory system?
Esophagus
