Multiple Choice
Which organ is correctly matched with its body system?
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1. Introduction to Anatomy & Physiology
Introduction to Organ Systems
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Which of the following contains the largest pool of water in the human body?
A
Intracellular fluid
B
Interstitial fluid
C
Plasma
D
Transcellular fluid
Verified step by step guidance1
Understand the concept of fluid compartments in the human body. The body contains several distinct fluid compartments: intracellular fluid (inside cells), interstitial fluid (between cells), plasma (in the blood), and transcellular fluid (specialized fluids like cerebrospinal fluid).
Recall that intracellular fluid is the fluid contained within the cells and makes up the largest proportion of total body water, typically around 60-65% of the total body water.
Compare the other fluid compartments: interstitial fluid accounts for about 25% of total body water, plasma makes up approximately 8%, and transcellular fluid is the smallest, contributing less than 2%.
Recognize that intracellular fluid is the largest pool of water in the human body because it is distributed across all cells, which collectively make up a significant portion of the body's mass.
Conclude that the correct answer is intracellular fluid, based on its proportion relative to the other fluid compartments.
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