In which region of the nephron does the fractional reabsorption of water vary the most in response to variation in the state of hydration?

A. the glomerulus
B. the proximal convoluted tubule
C. the loop of Henle
D. the distal convoluted tubule
E. the collecting duct


E

Anatomy & Physiology

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A) renal cortex B) renal medulla C) minor calyx D) renal papilla E) renal pelvis

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Which of the following does not cause relaxation of smooth muscle within local arterioles?

a. carbon dioxide b. endothelin c. nitric oxide d. histamine e. increased osmolarity

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What does "E" represent on the diagram of the skull and brain?

A. Subdural space B. Dural venous sinus C. Pia mater D. Subarachnoid space E. Arachnoid mater

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Movement of the upper limb away from the trunk is called ________

A) extension B) adduction C) abduction D) lateral flexion

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