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Which body fluid is the fluid within the cells, constituting about 70% of the total body water?

A.

interstitial fluid

B.

intracellular fluid (ICF)

C.

intravascular fluid

D.

extracellular fluid (ECF)

Answer and Explanation

The Correct Answer is B

a) Interstitial fluid: Interstitial fluid is the fluid that surrounds cells, not the fluid within the cells themselves.

b) Intracellular fluid (ICF): Intracellular fluid makes up about 70% of total body water and is found inside the cells. This is the fluid that plays a key role in cellular functions.

c) Intravascular fluid: Intravascular fluid refers to the fluid within the blood vessels (plasma), which makes up about 5% of total body water.

d) Extracellular fluid (ECF): Extracellular fluid includes both interstitial fluid and intravascular fluid, but it is not the fluid within the cells.


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Related Questions

Correct Answer is D

Explanation

a) Vitamins, minerals, and water carbohydrates, protein, and lipids: While vitamins, minerals, and water are essential nutrients, they do not provide energy. The correct sources of energy are carbohydrates, proteins, and lipids.

b) Lipids, vitamins, and minerals: Lipids provide energy, but vitamins and minerals do not.

c) Carbohydrates, protein, and water: Water does not provide energy, although carbohydrates and proteins do.

d) Carbohydrates, protein, and lipids: Carbohydrates, proteins, and lipids are the three macronutrients that provide energy to the body. These nutrients are broken down to release energy (calories) for bodily functions.

Correct Answer is D

Explanation

a) School-age child: While a school-age child is at risk for dehydration, their fluid and electrolyte imbalance risk is less than that of an infant due to greater reserve and more effective compensatory mechanisms.

b) Adolescent: Similar to the school-age child, an adolescent is at lower risk for severe fluid and electrolyte imbalances due to a better-developed system to handle fluid loss.

c) Young adult: While diarrhea can lead to dehydration in young adults, they are generally more capable of compensating for mild to moderate fluid losses compared to infants.

d) Infant: Infants are at the highest risk for severe fluid and electrolyte imbalance due to their smaller body size, higher fluid turnover, and less efficient compensatory mechanisms. Dehydration can develop quickly in infants.

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