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6 Tutorials that teach Muscle Contractions: Macro View/Contracciones musculares a vista macro
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Muscle Contractions: Macro View/Contracciones musculares a vista macro

Muscle Contractions: Macro View/Contracciones musculares a vista macro

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This lesson will give an overview of how a specific muscle contracts to allow movement in the body.

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Tutorial

En esta lección vamos a discutir cómo las contracciones musculares permiten el movimiento de nuestros esqueletos.

TERMS TO KNOW
  • Tendon

    A tough band of fibrous connective tissue that usually connects muscle to bone.

  • Origin

    The fixed, non-moveable end of a skeletal muscle

  • Insertion

    The fixed, moveable end of a skeletal muscle.

  • Joint

    An area where two or more bones come together.

  • Antagonistic contraction

    When an opposing muscle on the opposite side of a joint contracts to create an opposing movement to its muscle counterpart (example flexion vs. extension).

  • Synergistic contraction

    When a group of muscles work together to create the same movement; an example would be your bicep brachii and brachialis muscle contraction simultaneously to create flexion (bending) of your elbow.

  • Reciprocal innervation

    The nervous system controlling muscle groups that oppose and work against one another; allows for a variety of movements and protection of joints.