What is the primary function of alveoli in the lungs?
Exchanging gases
Alveoli are tiny, thin-walled air sacs at the end of the bronchioles, surrounded by a dense network of capillaries.
Their large surface area and thin respiratory membrane allow oxygen to diffuse from alveolar air into the blood and carbon dioxide to diffuse from blood into the alveoli.
Mucus is produced by goblet cells of the airways, the rib cage is moved by the respiratory muscles, and blood is filtered by the kidneys.
Hence, Exchanging gases.
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Important Questions from Physiology
If a person touches a hot surface and quickly pulls their hand away, which type of nerves are primarily responsible for sending the signal to move the hand?
What is the primary function of the baroreceptors located in the carotid sinus and aortic arch?
During the menstrual cycle, what typically occurs when estrogen and progesterone levels drop at the end of the cycle?
Which of the following organs play(s) the primary role in maintaining fluid and electrolyte balance in the human body?
A patient presents with excessive thirst, frequent urination, and fatigue. Laboratory results reveal low levels of antidiuretic hormone. Which endocrine gland is most likely malfunctioning in this scenario?
