Autotomy
Autotomy
Autotomy (pronounced: au·tot·o·my | \ ȯ-ˈtä-tə-mē \) is a biological process where an organism voluntarily sheds off a part of its body, usually as a self-defense mechanism. The term is derived from the Greek words auto meaning "self" and tome meaning "cutting."
Etymology
The term "autotomy" is derived from the Greek words auto meaning "self" and tome meaning "cutting." It was first used in the late 19th century to describe the phenomenon observed in certain animals that shed off parts of their bodies to escape predators.
Process
Autotomy is a complex process that involves a combination of neurological, physiological, and biochemical responses. The process is initiated by a threat stimulus, which triggers a series of reactions leading to the detachment of the body part. The wound left behind usually heals rapidly to prevent infection and blood loss.
Examples
Autotomy is observed in a variety of organisms. For instance, many lizard species can shed their tails to distract predators, a process known as Caudal Autotomy. Similarly, starfish and sea cucumbers can eject their internal organs to confuse or entangle predators, a phenomenon known as Visceral Autotomy.
Related Terms
- Caudal Autotomy: The shedding of the tail by an animal.
- Visceral Autotomy: The expulsion of internal organs by an animal.
- Regeneration: The process by which animals regrow body parts that have been lost or damaged.
- Predation: The act of hunting and killing other organisms for food.
See Also
External links
- Medical encyclopedia article on Autotomy
- Wikipedia's article - Autotomy
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