Abduction
Definition
Abduction is the movement of a body part away from the midline of the body or another reference point. It involves muscles that contract to move bones at joints, commonly seen in limb movements.
5 Must Know Facts For Your Next Test
- Abduction occurs in the frontal plane and typically involves lateral movement.
- The deltoid muscle is primarily responsible for abduction of the arm at the shoulder joint.
- Hip abduction involves muscles such as the gluteus medius and gluteus minimus.
- Abduction can be hindered by injuries or conditions affecting bones, joints, or muscles.
- It is opposite to adduction, which brings a body part towards the midline.
Review Questions
- Which plane does abduction occur in?
- Name two muscles involved in hip abduction.
- What is the opposite movement of abduction called?
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Related terms
Adduction: Movement of a body part toward the midline of the body.
Flexion: Bending a joint to decrease the angle between two bones.
Extension: Straightening a joint to increase the angle between two bones.
