abduction
Physiology
(noun)
The movement that separates a limb or other part from the axis, or middle line, of the body.
(noun)
Movement away from the midline of the body.
Biology
Examples of abduction in the following topics:
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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.
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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.
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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
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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.
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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.
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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.
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Dermatomes
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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.
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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.
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Muscles that Cause Movement at the Foot