The ___________ fluid concentration is constant in most vertebrates.
A)spinal
B)circulatory
C)extracellular
D)lymph

Question

Quizplus · Accepted Answer

The extracellular fluid concentration refers to the fluid outside of cells, which includes both interstitial fluid and blood plasma. It is typically regulated to maintain a constant osmotic pressure and electrolyte balance, and is therefore constant in most vertebrates. Spinal fluid is found specifically within the central nervous system, lymph is outside of blood vessels and within the lymphatic system, and circulatory fluid refers specifically to blood within blood vessels.

The ___________ Fluid Concentration Is Constant in Most Vertebrates