Questions: The extracellular fluid that bathes the cells of a human is considered part of the internal or external environment.
Transcript text: 1 of 21 Concepts completed
Multiple Choice Question
The extracellular fluid that bathes the cells of a human is considered part of the $\qquad$ environment.
internal
external
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Solution
The answer is the first one (or A): internal environment.
Explanation for each option:
Internal environment: This is correct because the extracellular fluid (ECF) that bathes the cells of a human is part of the internal environment. The internal environment includes all the fluids and spaces within the body that are not exposed to the external environment, such as blood plasma, interstitial fluid, and other bodily fluids that surround cells.
External environment: This is incorrect because the external environment refers to everything outside the body, including the air, water, and other external factors. The extracellular fluid is contained within the body and is not exposed to the external environment.
Summary:
The extracellular fluid that bathes the cells of a human is considered part of the internal environment.