Respiratory System Flashcards
(25 cards)
What is the primary function of the respiratory system?
To facilitate gas exchange, primarily oxygen intake and carbon dioxide removal.
True or False: The respiratory system includes the lungs and airways.
True
Fill in the blank: The main organ of the respiratory system is the ______.
lung
What are the two main processes involved in respiration?
Inspiration (inhalation) and expiration (exhalation).
What is the role of the diaphragm in respiration?
The diaphragm contracts to allow air to enter the lungs and relaxes to expel air.
Which gas is primarily exchanged in the alveoli?
Oxygen
Multiple choice: Which structure is NOT part of the upper respiratory tract? A) Nasal cavity B) Trachea C) Pharynx D) Larynx
B) Trachea
What is the purpose of the cilia in the respiratory system?
To trap and move particles out of the airways.
True or False: The pleura are membranes surrounding the lungs.
True
What is pulmonary ventilation?
The process of moving air in and out of the lungs.
Fill in the blank: The exchange of gases between the blood and body tissues is called ______.
internal respiration
What is the function of surfactant in the lungs?
To reduce surface tension in the alveoli and prevent collapse.
Multiple choice: Which part of the brain regulates breathing? A) Cerebellum B) Medulla oblongata C) Thalamus D) Hippocampus
B) Medulla oblongata
What is the role of hemoglobin in the respiratory system?
To transport oxygen from the lungs to the tissues and carbon dioxide from the tissues to the lungs.
True or False: The respiratory system also plays a role in regulating blood pH.
True
What is the term for the tiny air sacs in the lungs where gas exchange occurs?
Alveoli
Fill in the blank: The trachea divides into two primary ______.
bronchi
What is the significance of the respiratory rate?
It indicates how many breaths a person takes per minute, reflecting respiratory health.
Multiple choice: Which condition is characterized by difficulty breathing due to narrowed airways? A) Asthma B) Pneumonia C) Emphysema D) Tuberculosis
A) Asthma
What is external respiration?
The exchange of gases between the lungs and the atmosphere.
True or False: The right lung has three lobes, while the left lung has two lobes.
True
What is the primary muscle involved in inhalation?
Diaphragm
Fill in the blank: The respiratory system helps to produce ______ through the larynx.
sound
What is the function of the nasal cavity in the respiratory system?
To filter, warm, and humidify the air before it enters the lungs.
