Physiology · Cell Biology · Medium
Diffuse
Meaning: To passively spread from an area of high concentration to low concentration without energy.
In practice: Oxygen diffuses from alveoli into the bloodstream down a concentration gradient.
Quick check
Two questions on related physiology words.
Which word means: The continuous movement of blood through the heart and blood vessels.
Answer: Circulation
Which word means: The fluid that circulates through the cardiovascular system carrying oxygen and nutrients.
Answer: Blood
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