The kidney has an important role in the regulation of the plasma concentration and blood volume. The photograph shows a Bowman's capsule (renal capsule). The line from X to Y shows the diameter of the Bowman's capsule. (Source: © Science Photo Library/Alamy Stock Photo) Drinking too much water causes the plasma solute concentration to decrease and the blood volume to increase. Describe how the body responds to this change. (4) ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................
Exam No：WBI1501-que-20241024 Year：2024 Question No：6(c)
Answer:
A description that includes four of the following points:
- (plasma concentration) detected by osmoreceptors (1)
- blood \{volume / pressure\} (increase) would be detected by \{baroreceptors / pressure receptors\} in \{carotid artery / aortic arch\} (1)
- (resulting in) pituitary gland to release less ADH (1)
- causing reduction in aquaporins in kidney tubule / decreases permeability of \{DCT / collecting duct\} (1)
- leading to less water being reabsorbed by \{kidney / DCT / collecting duct\} / (more) \{dilute / less concentrated \} urine production (1)
- (plasma concentration) detected by osmoreceptors (1)
- blood \{volume / pressure\} (increase) would be detected by \{baroreceptors / pressure receptors\} in \{carotid artery / aortic arch\} (1)
- (resulting in) pituitary gland to release less ADH (1)
- causing reduction in aquaporins in kidney tubule / decreases permeability of \{DCT / collecting duct\} (1)
- leading to less water being reabsorbed by \{kidney / DCT / collecting duct\} / (more) \{dilute / less concentrated \} urine production (1)
Knowledge points:
CH7 – Respiration, Muscles and the Internal Environment
Solution:
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