Exam 50: Osmotic Regulation and the Urinary System

The presence of a loop of Henle in nephrons is an evolutionary adaptation that enables mammals and birds to reabsorb water efficiently and produce a ____________ urine.

What animal cannot make hypertonic urine?

The regulatory systems of the animal body maintain a relatively stable internal condition through a process called ____________________.

Where are the receptors that respond to elevated blood osmolarity?

What animals could drink seawater and not get dehydrated?

According to the above figure, which letter corresponds to the area where water is absolutely not reabsorbed?

An increase in the production of ADH affects the kidney tubules by

Nearly two-thirds of every vertebrate's body is composed of __________.

One of the key factors in vertebrate colonization of many diverse environments is

The organ that performs filtration of blood, reabsorption, and secretion in vertebrates is the _______.

Select the incorrectly-matched vertebrate and its urine concentration relative to its blood.

Roger, who has Type I diabetes mellitus, forgot to take along his insulin on a fishing trip to a remote part of Alaska.It takes him three days to make it out of the wilderness to a hospital.What would be the most likely match to Roger's blood and urine profile once he reaches the hospital?

Mike has just returned home from college for the summer and notices that his 8-year old Dalmation dog Patches is limping and has difficulty walking up and down stairs.When Mike takes Patches to the vet, the vet recommends that Mike put him on a low-purine diet.This dietary change will lessen the formation of painful precipitates of ___________ in Patches' joints.

Freshwater fish are _____ with respect to osmoregulation.

Substances NOT usually found in normal human urine are