Anatomy
Anatomy
Abduction
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Historical reference: its only source is the original reference manual, and some of it may be out of date. Not used for AI answers until re-sourced.
See this lesson’s sourcesmovement-terminologyjoint-motionabduction
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DefinitionA short reference note, not a full lesson.
Definition
Movement of a body part away from the midline (axis) of the trunk.
Detail
Abduction is movement away from the axis of the trunk. Examples include raising the arms to the side horizontally, raising a leg sideward, and moving the scapula away from the spinal column. Source attributes the movement terminology to Thompson (1989).
Key facts
- Abduction = movement away from the axis of the trunk.
- Examples: arms raised sideways horizontally; leg raised sideward; scapula moving away from the spinal column.
Connections
- Adduction — the opposite movement (toward the midline).
- Hip Abductors — muscles that produce hip abduction.
- Hip Joint Range of Motion — hip abduction ROM is 45 degrees.
Sources
Historical reference · reference manual (page cited)
p.728
Cited authorities in source: Thompson (1989).
Keep this lesson, or ask how it applies to you.
Educational content only — not medical advice. Always consult a qualified professional for individualized guidance, especially around injury, pregnancy, or medical conditions.
Explore related topics
Atlas Connections
AdductionClosely related
Movement of a body part toward the midline (axis) of the trunk.Hip Abductors
The hip abductors are the gluteus medius and gluteus minimus.Hip Joint Range of Motion
Hip flexion 90° (knee extended) to 120° (up to 135°, knee flexed); hyperextension 10–30°; adduction 30°; abduction 45°; medial rotation 30–45°; lateral rotation 45–60°.Shoulder / Arm Range of Motion
Arm flexion 135°, shoulder adduction 50°, shoulder hyperextension 45°, shoulder abduction 90–180°.