|
|
In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.
There are 20 feet of blood vessels in each square inch of human skin.
Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.
Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.
Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.
![Diabetes mellitus. The metabolic disease diabetes mellitus, with symptoms of polydipsia, polyuria, a](https://biology-forums.com/gallery/47/medium_14755_14_10_12_6_35_06_93842397.jpeg)
![Urinary tract infection. A UTI is characterized by fever, lumbar or abdominal pain, and pain or burn](https://biology-forums.com/gallery/47/medium_14755_26_10_12_5_19_57_966651.jpeg)