The salt glands excrete excess salts and water from the body. The urinary tract is also used for this purpose through the kidney.
Fish excrete excess salt through their gills and kidneys. Special cells in the gills actively pump out salt, while the kidneys filter out excess salt from the blood and excrete it as concentrated urine. This is essential for fish living in saltwater environments to maintain their internal salt balance.
Some animals, like marine mammals such as seals and sea turtles, have the ability to drink salt water and excrete excess salt through specialized glands.
Humans lose salt through urine, sweat, and feces. When we sweat during physical activity or in hot temperatures, we excrete salt along with the water. Similarly, our kidneys filter out excess salt from the bloodstream and excrete it in urine.
Kidneys excrete excess water.
Sweat glands excrete sweat ( which is mostly salt and water).
Sweat glands excrete sweat ( which is mostly salt and water).
The body wants to excrete the excess salt. This can be done either through the sweat glands, or the kidneys (urine). Either way requires water to dissolve the salt.
Saltwater fish have special cells in their gills that actively pump out excess salt ions through a process called osmoregulation. This allows them to maintain a balance of salts inside their bodies despite living in a high salt environment. Additionally, they have efficient kidneys and excrete concentrated urine to further regulate their internal salt levels.
Flamingos have specialized glands located above their eyes that help them excrete excess salt from their bodies. When they consume saltwater while feeding, these glands filter out the salt and transport it to their nostrils. The excess salt is then expelled through their nostrils, allowing them to maintain a proper balance of electrolytes and hydration. This adaptation enables flamingos to thrive in salty environments where other birds may struggle.
Due to its evolutionary descent from fresh water fish mammals get rid of excess salt by flushing it out with excess water. (Fresh water fish always had excess fresh water that was in need of getting rid of, so that is the method they developed and mammals inherited.) If a mammal drinks salt water it tries to get rid of the excess salt by excreting excess water and slowly dehydrates itself to death.
The openings in the skin for the discharge of water, salts, and urea are called sweat pores; these are the openings of sweat organs which delivery sweat containing these substances when the body needs to chill off
When you sweat, usually, is how you excrete excess water. Of course, though, when your bladders get full, urinate helps too!