abduction

Physiology

(noun)

The movement that separates a limb or other part from the axis, or middle line, of the body.

Related Terms

  • Levers can also vary based on the relative position of the load, pivot, and point of force application.
  • synovial joint
  • Flexion
  • extensors
  • Abduction
  • adduction
  • third-class lever
  • second-class lever
  • first class lever
  • rotation
  • origin
  • insertion
  • flexion
  • extension
  • flexor
  • extensor

(noun)

Movement away from the midline of the body.

Related Terms

  • Levers can also vary based on the relative position of the load, pivot, and point of force application.
  • synovial joint
  • Flexion
  • extensors
  • Abduction
  • adduction
  • third-class lever
  • second-class lever
  • first class lever
  • rotation
  • origin
  • insertion
  • flexion
  • extension
  • flexor
  • extensor
Biology

(noun)

moving a bone away from the midline of the body

Related Terms

  • pronation
  • supination
  • adduction

Examples of abduction in the following topics:

  • Movement at Synovial Joints

    • There are several different types of angular movements, including flexion, extension, hyperextension, abduction, adduction, and circumduction.
    • Examples of abduction include moving the arms or legs laterally to lift them straight out to the side.
    • Movement of the limbs inward after abduction is an example of adduction.
    • Moving the limb or hand laterally away from the body, or spreading the fingers or toes, is abduction.
    • Adduction/abduction and circumduction take place at the shoulder, hip, wrist, metacarpophalangeal, and metatarsophalangeal joints.
  • Muscles that Cause Movement at the Hip Joint

    • Actions - Abducts and medially rotates the thigh and fixes the pelvis during walking.
    • Actions - Lateral rotation and abduction of the thigh at the hip.
    • Actions - Lateral rotation and abduction of the thigh at the hip.
    • Actions - Lateral rotation and abduction of the thigh at the hip.
    • Actions: Flexing, abducting and rotation of the thigh at the hip joint.
  • Reasoning

    • We use many mental shortcuts when conducting inductive, deductive, abductive, and analogous reasoning to find a solution to a problem.
    • In order to solve problems, we utilize four major forms of reasoning: deduction, induction, abduction, and analogy.
    • However, unlike deduction, induction, or abduction where at least one premise (or the conclusion) is general, analogy concerns itself only with specifics and particulars.
    • Differentiate between the processes of induction, deduction, abduction, and analogy, discussing heuristics that are used in these processes
  • Logic

    • Instinct, intuition, abduction, deduction, induction and authority are examples of sources of knowledge.
    • The differences are that abduction is less formal process that consists of a combination of intuition, experience, observation, deductive reasoning and generates hypotheses which could be wrong.
    • It is the purpose of inductive and deductive reasoning to test the hypotheses that emerge from the process of abduction.
  • Reasoning and Inference

    • Examples of abductive reasoning include a doctor making a diagnosis based on test results and a jury using evidence to pass judgment on a case: in both scenarios, there is not a 100% guarantee of correctness—just the best guess based on the available evidence.
    • The difference between abductive reasoning and inductive reasoning is a subtle one; both use evidence to form guesses that are likely, but not guaranteed, to be true.
    • However, abductive reasoning looks for cause-and-effect relationships, while induction seeks to determine general rules.
  • Muscles of the Wrist and Hand

    • Extensor Carpi Radialis Longus and Brevis – A pair of muscles located on the side of the forearm, allowing them to control extension and abduction of the wrist.
  • Dermatomes

  • Neck Muscles

    • Actions -Extends and controls abduction and adduction of the spine and neck.
    • Actions - Extends and controls abduction and adduction of the spine and neck.
    • Actions – Extends and flexes to control abduction and adduction of the spine and neck.
    • It controls adduction, abduction and rotation of the head, the intermediate region retracts the scapula, and the inferior region rotates and depresses the scapula.
  • Painting

    • The abduction of women is one theme visible in one image of Helen with Paris leaving for Troy.
    • Another image portrays the abduction of Amphitrite by Poseidon.
    • In both cases, a male abducts a woman.
  • Muscles that Cause Movement at the Foot

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