16 Questions
Which of the following is a protective mechanism in the upper Airways?
Nasal hair
What surrounds the bronchioles and distinguishes them from bronchi?
Elastic fibers and smooth muscle
What is the function of the epiglottis during swallowing?
Closing the larynx to prevent food or liquid from entering the lower respiratory tract
Where does gas exchange occur in the respiratory system?
Alveoli
What is responsible for enriching deoxygenated blood with oxygen in the lungs?
Red blood cells
What is the estimated number of alveoli in the human respiratory system?
300 to 400 million
What is the function of cilia on the nasal mucosa?
To move in a wave-like manner and push nasal mucus towards the pharynx
What is the role of the trunks of the bronchial tree?
Forming branches of the tubular system of the lungs
What is the role of the epiglottis during swallowing?
Preventing food and liquid from entering the lower respiratory tract
Where are the red blood cells responsible for enriching deoxygenated blood with oxygen located?
Alveoli
What is the function of cilia on the nasal mucosa?
Moving in a wave-like manner to push nasal mucus towards the pharynx
What surrounds the bronchioles and distinguishes them from bronchi?
Elastic fibers and smooth muscle
What is responsible for binding oxygen in the red blood cells?
Iron ion
What is the estimated number of alveoli in the human respiratory system?
300 to 400 million
What prevents large dirt particles or insects from entering the lower respiratory tract?
Nasal hair and nasal mucosa
Where does gas exchange occur in the respiratory system?
Alveoli
Take a fascinating journey through an animated exploration of the human respiratory system. Learn about the components and functions of the respiratory system, including the role of oxygen, water, gases, and protective mechanisms in the upper Airways.
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