Protection and insulation are two major functions of the skin.
If a patient has swollen ankles and signs of degenerating organ functions, this likely means they have a problem with their kidneys. It could also mean they are having heart problems.
Organ
An organ
two or more tissues form an organ
An organ is a group of tissue that works together to perform similar functions.
Skin
which organ system regulates body functions by means of electrochemical impulses
Organ
An organ typically consists of several types of tissues that work together to perform specific functions. The main components of an organ include the outer protective layer called the capsule, the parenchyma or functional tissue that carries out the organ's specific role, and the supporting and connective tissues like blood vessels, nerves, and fibrous tissue. The specific anatomy of an organ can vary depending on its function and location in the body.
the stomach is a organ which prefroms its digestive functions
It's a case of removing an organ that no longer funcions and replacing it with a similar organ that (hopefully) does function (either 'functions correctly' or at least 'functions better than the previous organ'). Obviously with a lot of post-transplant medication afterwards.