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Difference Between Abduction and Adduction

September 5, 2013 Posted by Admin

Abduction vs Adduction
 

The body movements are accomplished basically by the contraction of muscles. Since most muscles are attached to bones, muscle can move parts of the skeleton relatively to each other. In humans, all these movements are classified according to their moving directions while assuming the body is in anatomical position. Adjusting in relation to the midline of the body, there are two types of motion; abduction and adduction. In addition to these two, flexion, extension, hyperextension, medial, lateral, circumduction, elevation, depression, protraction, retraction, pronation, supination, inversion, eversion and tilt are the other terms of fundamental movements from anatomical position.

Abduction

Adduction is defined as motion that pulls a body part away from the midline of the body. In the case of fingers and toes, spreading the digits away from the centerline of hand or foot is also considered as abduction. Raising the arms laterally, to the sides and moving the knees away from the midline are some examples of abduction. Radial deviation is the abduction of wrist.

Adduction

Adduction is the movement of a body part toward the body’s midline. In the case of fingers or toes, adduction is the movement of digits toward the limb. Closing arms to the chest or bringing knees together are examples of adduction. Adduction of the wrist is referred to as ulnar deviation.

What is the difference between Abduction and Adduction?

• Abduction is the movement that pulls a structure away from the midline. In contrast, adduction is the movement that pulls a structure toward the body’s midline.

• Adduction is the movement of digits toward the limb while abduction is the movement of digits away from the limb.

• Adduction of wrist is called ulnar deviation, whereas abduction of wrist is called radial deviation.

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Filed Under: Biology Tagged With: abduction, Adduction

About the Author: Admin

Coming from Engineering cum Human Resource Development background, has over 10 years experience in content developmet and management.

Comments

  1. JohnFMayer says

    July 25, 2016 at 11:38 pm

    I think there is an error here, as you’ve defined “adduction” and “abduction” the same.

    Reply
    • JohnFMayer says

      July 25, 2016 at 11:40 pm

      To wit: “Adduction is defined as motion that pulls a body part away from the midline of the body.”

      And: “Adduction is the movement of a body part toward the body’s midline.”

      Reply
      • Frantz Bartoli says

        September 25, 2017 at 5:39 am

        it is very easy to remember if you use this pneumonic :
        see it like that: ABDUCTION is away from the Body’s midline and ADDUCTION is toward the Body’s midline because of the 2 “DD”.. 2D’s together…like 2 homosexuals.

        Reply
      • Diana Brannan says

        November 29, 2017 at 5:27 pm

        I think you need to re-read the difference between away and toward.

        Reply

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