Question

Drinking sea water would cause a rise in the osmotic pressure of the ecf; this would force water to leave the blood capillaries. are these two statements true or false

Answer 1

I think the first statement is true; while the second statement is false. It is true that drinking sea water would cause a rise in the osmotic pressure of the extracellular fluid because sea water will be hypertonic (salty water) to the extracellular fluid therefore water will move from the extracellular fluid osmotically creating an a rise in osmotic pressure. The whole effect won't make water leave the blood capillaries.