How Does the Loop of Henle Enable the Mammalian Kidney

question 28

Multiple Choice

How does the loop of Henle enable the mammalian kidney to produce hypertonic urine?
I-The ascending limb of the loop actively extrudes Na+.
II-The descending limb interacts with the ascending limb to raise the osmolarity of the extracellular fluid in the renal medulla.
III-The concentration is further enhanced by the presence of urea,which draws water out of the collecting ducts by osmosis.

• A)just I
• B)II and III
• C)just III
• D)I and II
• E)I,II,and III

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Definitions:

Hermann Ebbinghaus

A German psychologist known for his pioneering work in the study of memory, including the discovery of the forgetting curve and the spacing effect.

Iconic Memory

A type of visual sensory memory that holds a brief photographic image for a few seconds after the exposure to the original stimulus.

Photographic

Pertaining to or using light in the production of images, often used in context with photography or imaging techniques.

Few Tenths

A phrase typically used to describe a small quantity or measure, amounting to a fraction of a whole.