Abduction (kinesiology)

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Anatomical planes in a human

Abduction, in functional anatomy, is a movement which draws a limb away from the median (Sagittal) plane of the body. It is thus opposed to adduction.

1 Muscles of abduction
2 References

Muscles of abduction

Upper limb

The coming together of two bones attached by a joint laterally

of arm at shoulder^[1]^[2]
- Supraspinatus (initiates motion)
- Deltoid (continues motion)

of hand at wrist^[3]

of finger^[4]
- Abductor digiti minimi
- Dorsal interossei of the hand

of thumb^[5]
- Abductor pollicis longus
- Abductor pollicis brevis

Lower limb

of femur at hip^[6]
- Gluteus medius
- Gluteus minimus

of toe^[7]

Other

vocal folds
- Posterior cricoarytenoid muscle

eyeball

References

v • d • e Joints (TA A03.0, GA 3.284)

Types	fibrous: Gomphosis · Suture · Syndesmosis · Interosseous membrane cartilaginous: Synchondrosis · Symphysis synovial: Plane joint · 1° (Hinge joint, Pivot joint) · 2° (Condyloid joint, Saddle joint) · 3° (Ball and socket joint) by range of motion: Synarthrosis · Amphiarthrosis · Diarthrosis

Terminology	Kinesiology · Anatomical terms of motion · Agonist/Antagonist

Motions	general: Flexion/Extension · Adduction/Abduction · Internal rotation/External rotation · Elevation/Depression specialized/upper limbs: Protraction/Retraction · Supination/Pronation specialized/lower limbs: Plantarflexion/Dorsiflexion · Eversion/Inversion

Components	capsular: Articular capsule (Synovial membrane, Fibrous membrane) · Synovial fluid · Synovial bursa · Articular disk/Meniscus extracapsular: Ligament · Enthesis

joint navs: anat, non-congenital arthropathies/deformities/dorsopathies/soft tissue arthropathy/congenital, eponymous signs, proc

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