Organ Additional

Accessory organ

An accessory organ (in Latin accessorius) is a concept that describes those organs that are not directly related to the main functions of the body, but can perform additional or secondary functions. These organs are most often not constantly available and depend on environmental conditions. They can decrease or increase depending on the body's needs at a given time. One of the most striking examples of an accessory organ is the bat’s ear, an echolocation organ. It allows these animals to detect objects at great distances using sound waves, rather than visually, like humans.

Accessory organs can also arise at the level of tissues and cells. For example, when cancerous tumors form in the body, cells may appear that produce an additional pigment, melanin, which helps the cancer hide from sunlight. This case of using an additional organ is dangerous and causes a feeling of indignation among those who suffer from this type of pathology. A similar thing can happen to the human body if the main organ does not work. For example, such situations can often accompany injuries or defects during the development and formation of the body. In such cases, the organ could help, perhaps even save a person's life. But it simply doesn’t exist or doesn’t work. An organ may be temporarily “superfluous,” such as the hairs on the body of some animals. This happens when they find themselves in unusual living conditions. The appearance of cells with additional pigment is explained by the survival of the organism in conditions of a sharp change in environmental conditions.