Question

You’re hiking in Chautauqua with friends on a hot summer day and sweating. You notice your bladder feels full and you feel the urge to pee. There’s no convenient place to pee so you decide to keep going. You figure all the sweating you’re doing will cause some of the water in your bladder to be returned to your body lessening the need to pee. Can water in the bladder be returned to the body, and if so, by what mechanism?

a) Yes, using aldosterone.

b) Yes, using vasopressin.

c) Yes, using both aldosterone and vasopressin.

d) No, you can’t reabsorb the water in your bladder

Answer 1

ANSWER- OPTION D - NO, YOU CANT REABSORB THE WATER IN YOUR BLADDER.

EXPALANTION- Anatomically, the urinary tract (ureters, bladder and urethra) is lined by transitional epithelium. This is also known as "umbrella cells", which are impermeable, preventing the passage of urine (and its associated solutes) back into the body. If these cells were permeable we'd have a hard time excreting excess water from the body because every time we tried to throw some away it would leak back in!. Our body is wired in such a way that when there is no convenient place to pee, our body can hold urine for couple of hours. the transitional epithelium cells are anatomically desined in such a way that they can absorb urine and hold it in, reducing the urgency to pee are reducing the fulness in the bladder aswell.

GOOD LUCK!