adduction
(noun)
Movement towards the midline of the body.
(noun)
The action by which the parts of the body are drawn toward its axis.
Examples of adduction in the following topics:
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Complete Antigens and Haptens
- When haptens and carriers combine, the resulting molecule is called an adduct, which the combination of two or more molecules.
- Other haptens, such as floursecein, are used to detect proteins that they form adducts with, which makes them a common part of molecular biology lab techniques.
- A complete antigen is essentially a hapten-carrier adduct.
- Once the body has generated antibodies to a hapten-carrier adduct, the small-molecule hapten may also be able to bind to the antibody, but it will usually not initiate an immune response; usually, only the hapten-carrier adduct, which is the completed antigen, can do this.
- Sometimes the small-molecule hapten can even block immune response to the complete antigen by preventing the adduct from binding to the antibody, a process called hapten inhibition.
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Pulled Groin
- These groin muscles adduct the thigh (bring the femur and knee closer to the midline).
- This difference in innervation has caused some dispute whether or not the pectineus belongs to this groin and adduction group even though it still adducts the thigh.
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Chewing Muscles
- Mastication, or chewing, involves the adduction and lateral motions of the jaw bone.
- Mastication, or the act of chewing, involves adduction and lateral motion of the jaw bone.
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Posterior 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, flexes, and controls abduction and adduction of the spine and neck.
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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.
- Actions – Abduction, adduction, extension, flexion, and rotation of the neck depending on intra and inter-muscle contractions.
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Lever Systems
- Abduction and adduction are movements relative to the midline of the body.
- Abduction is the movement away from the midline of the body and adduction is movement towards this line.
- For example, moving arms or legs laterally away from the body is abduction, and bringing the limbs back to the midline is adduction.
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Muscles of the Shoulder
- Actions – Adducts the shoulder and assists in rotation of the arm.
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Accessory (XI) Nerve
- The sternocleidomastoid muscle tilts and rotates the head, while the trapezius muscle has several actions on the scapula, including shoulder elevation and adduction of the scapula.
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Synovial Joint Movements
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Muscles that Cause Movement at the Foot
- Actions: Adduct the big toe and maintains the arch of the foot.