Physiology · Multiple Systems · Medium
Exchange
Meaning: The transfer of gases, ions, or nutrients across membranes or at capillary interfaces.
In practice: Gas exchange in the alveoli depends on large surface area and thin membranes.
Quick check
Two questions on related physiology words.
Which word means: All the chemical reactions that occur in the body to maintain life.
Answer: Metabolism
Which word means: The process of restoring damaged cells or tissues toward normal structure and function.
Answer: Repair
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