Question

1. In terrestrial mesic and xeric animals, the ability to concentrate urine is correlated with… a....

1. In terrestrial mesic and xeric animals, the ability to concentrate urine is correlated with…

a. The length of the loop of Henle

b. The length of the renal papilla

c. The size of the renal medulla

d. Both a and b are true.

e. All are true.

2. In xeric animals, water reabsorption is hormonally controlled at the ________________ by __________________.

Group of answer choices

A. Loop of Henle; Aldosterone

B. Loop of Henle; Antidiuretic hormone (ADH)

C. Collecting duct; Antidiuretic hormone (ADH)

D. Proximal Convoluted Tubule (PCT); PCT controlling hormone

Science   Anatomy-And-Physiology   
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Homework Answers

Answer #1

Question 1:

Answer: All are true

Explanation: In the urine concentration, The urine osmalarity is related with the length of loop of henle these animals have loop of henle so that animals have large concentration ability and size of renal medulla is associated with concentration of urine. And the concentration of urine the renal papila plays a huge role. Renal papilla is tiny projection from the minor calyx of kidney. If that animals has to concentrate urine only they have long renal pailla.

Question 3:

Answer: Collecting duct; Antidiuretic hormone

Explanation: Antidiuretic hormone is secreted by Pituitary gland which control the water and reabsorbed in the collecting duct. The collecting duct is permeable it allows the water to absorb.

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