extensor

Limb-straightening muscle tissue

An extensor is a muscle that straightens or extends a limb or joint, the opposite of a flexor.

The term appears mainly in anatomy: extensor muscles of the forearm, the extensor digitorum straightens the fingers.

As an adjective, it describes things related to extension: extensor tendons.

anatomy

forearm

Arm's lower half

  • elbowArm's middle joint
  • wristHand-forearm connection
  • fingerHand's grasping extension

ligament · joint · triceps · quadriceps · carpi · supinator · dorsal · musculoskeletal · compartment · fascia

movement

straightening

Making something not crooked

flexion · articulation · coordination · dexterity · manipulation · gait · grip · reach · spreading · lifting

physiology

contraction

Reduction in size

synapse · acetylcholine · action potential · myosin · actin · muscle fiber · muscle tone · isometric · isotonic · antagonist

rehabilitation

stretching

Extending muscles or material

recovery · strengthening · exercise · tendinitis · strain · injury · splint · brace · tennis elbow · physical therapy

Categories
Opposites
muscle function/movement direction

extensorflexor

Muscle that bends joints

contractor · adductor · bender · supinator · rotator

Phrases
Family

extension, extensive, extensible, extensors

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