Abduction
Abduction
Abduction (pronounced: /æbˈdʌkʃən/) is a term used in anatomy and physiology to describe the movement of a body part away from the midline of the body.
Etymology
The term "abduction" is derived from the Latin word "abducere", which means "to lead away".
Definition
In the context of human anatomy, abduction refers to the movement that pulls a structure or part away from the midline of the body, or the midline of a limb. In the case of fingers and toes, it is the spreading of the digits apart, away from the centerline of the hand or foot. Abduction of the wrist is also called radial deviation.
Related Terms
- Adduction: The opposite of abduction, adduction brings the body part closer to the midline of the body.
- Flexion: A bending movement that decreases the angle between two parts.
- Extension: A straightening movement that increases the angle between body parts.
- Rotation: A movement in which something, e.g. a bone or a whole limb, pivots or revolves around a single long axis.
- Pronation and Supination: These terms refer to rotation of the hands and forearms so that the palms face downwards and upwards respectively.
See Also
External links
- Medical encyclopedia article on Abduction
- Wikipedia's article - Abduction
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