Abduction (kinesiology)

Abduction (kinesiology)

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.

Muscles of abduction

Upper limb

The coming together of two bones attached by a joint laterally

* of arm at shoulder [ [http://www.exrx.net/Articulations/Shoulder.html#anchor105322 Shoulder Articulations ] ] [DartmouthAnatomy|shoulder/surface/ghsurface1]
** Supraspinatus (initiates motion)
** Deltoid (continues motion)

* of hand at wrist [ [http://www.exrx.net/Articulations/Wrist.html#anchor263084 Wrist Articulations ] ]
** Flexor carpi radialis
** Extensor carpi radialis longus
** Extensor carpi radialis brevis
** Abductor pollicis longus
** Extensor pollicis longus
** Extensor pollicis brevis

* of finger [ [http://www.exrx.net/Articulations/Fingers.html#anchor782744 Finger Articulations ] ]
** Abductor digiti minimi
** Dorsal interossei of the hand

* of thumb [ [http://www.exrx.net/Articulations/Thumb.html#anchor207954 Thumb Articulations ] ]
** Abductor pollicis longus
** Abductor pollicis brevis

Lower limb

* of femur at hip [ [http://www.exrx.net/Articulations/Hip.html#anchor847041 Hip Articulations ] ]
** Gluteus medius
** Gluteus minimus

* of toe [ [http://www.exrx.net/Articulations/Toes.html#anchor232714 Foot Articulations ] ]
** Abductor hallucis
** Abductor digiti minimi
** Dorsal interossei of the foot


* vocal folds
** Posterior cricoarytenoid muscle

* eyeball
** Lateral rectus muscle
** Superior oblique muscle
** Inferior oblique muscle


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