The Mechanism for Maintaining the Solute Concentration Gradient in the Medulla

question 1

Multiple Choice

The mechanism for maintaining the solute concentration gradient in the medulla require(s)

• A)active transport of Na⁺ ions from the ascending limb of the loop of Henle.
• B)active transport of Na⁺ ions from the ascending limb of the Vasa Recta.
• C)the ascending limb of the loop of Henle to be permeable to water.
• D)the descending limb of the loop of Henle to be impermeable to water.
• E)All of these are correct.

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Definitions:

Glial Cells

Non-neuronal cells in the central nervous system that support, nourish, and protect neurons.

Signaling System

A signaling system involves the transmission of signals or messages between cells or organisms to coordinate functions, responses, or behaviors.

Microelectrode

A tiny electrode used to record electrical signals from single neurons.

Millivolts

A unit of electric potential equal to one thousandth of a volt.