Physiology Quiz -
Body Fluid Compartments - Part 1

In order to have a solid understanding of physiological principles, it is essential that one understand the organization of body fluid compartments, as well as the composition of the fluids in these compartments. Test your understanding of body fluid compartments by taking this simple quiz.

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(1) The intracellular concentration of Na⁺ is about:

	(A) 150 mM
	(B) 150 μM
	(C) 15 mM
	(D) 4 mM
	(E) 2 mM

(2) The extracellular concentration of Na⁺ is about:

	(A) 150 mM
	(B) 150 μM
	(C) 15 mM
	(D) 4 mM
	(E) 2 mM

(3) The intracellular concentration of K⁺ is about:

	(A) 150 mM
	(B) 150 μM
	(C) 15 mM
	(D) 4 mM
	(E) 2 mM

(4) The extracellular concentration of K⁺ is about:

	(A) 150 mM
	(B) 150 μM
	(C) 15 mM
	(D) 4 mM
	(E) 2 mM

(5) The intracellular concentration of Ca²⁺ is about:

	(A) 70 mM
	(B) 70 nM
	(C) 15 mM
	(D) 4 mM
	(E) 2 mM

(6) The extracellular concentration of Ca²⁺ is about:

	(A) 70 mM
	(B) 70 nM
	(C) 15 mM
	(D) 4 mM
	(E) 2 mM

(7) The intracellular concentration of Cl⁻ is about:

	(A) 110 mM
	(B) 110 nM
	(C) 10 mM
	(D) 70 nM
	(E) 2 mM

(8) The extracellular concentration of Cl⁻ is about:

	(A) 110 mM
	(B) 110 nM
	(C) 10 mM
	(D) 70 nM
	(E) 2 mM

(9) The normal pH of the extracellular fluid is approximately:

	(A) 6.0
	(B) 7.2
	(C) 7.4
	(D) 8.0
	(E) All of the above are possible under normal, physiological conditions.

(10) The normal pH of the intracellular fluid is approximately:

	(A) 6.0
	(B) 7.2
	(C) 7.4
	(D) 8.0
	(E) All of the above are possible under normal, physiological conditions.

Checking your answers...

Posted: Monday, December 22, 2014
Last updated: Tuesday, March 11, 2025

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Physiology Quiz -Body Fluid Compartments - Part 1

Physiology Quiz -
Body Fluid Compartments - Part 1