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  2. Anatomical terms of muscle - Wikipedia

    en.wikipedia.org/wiki/Anatomical_terms_of_muscle

    It is still the agonist, because while resisting gravity during relaxing, the triceps brachii continues to be the prime mover, or controller, of the joint action. Another example is the dumb-bell curl at the elbow. The elbow flexor group is the agonist, shortening during the lifting phase (elbow flexion). During the lowering phase the elbow ...

  3. Prime mover - Wikipedia

    en.wikipedia.org/wiki/Prime_mover

    Prime mover (engine or motor), a machine that converts various other forms of energy (chemical, electrical, fluid pressure/flow, etc.) into energy of movement Prime mover (locomotive) , one of the several types of power plants used in locomotives to provide traction power

  4. Unmoved mover - Wikipedia

    en.wikipedia.org/wiki/Unmoved_mover

    The unmoved mover (Ancient Greek: ὃ οὐ κινούμενον κινεῖ, romanized: ho ou kinoúmenon kineî, lit. 'that which moves without being moved') [1] or prime mover (Latin: primum movens) is a concept advanced by Aristotle as a primary cause (or first uncaused cause) [2] or "mover" of all the motion in the universe. [3]

  5. Deltoid muscle - Wikipedia

    en.wikipedia.org/wiki/Deltoid_muscle

    When all its fibers contract simultaneously, the deltoid is the prime mover of arm abduction along the frontal plane. The arm must be medially rotated for the deltoid to have maximum effect. [13] This makes the deltoid an antagonist muscle of the pectoralis major and latissimus dorsi during arm adduction.

  6. Anatomical terms of motion - Wikipedia

    en.wikipedia.org/wiki/Anatomical_terms_of_motion

    These terms come from Latin words with similar meanings, ab-being the Latin prefix indicating ' away ', ad-indicating ' toward ', and ducere meaning ' to draw or pull '. [ b ] Abduction is a motion that pulls a structure or part away from the midline of the body, carried out by one or more abductor muscles.

  7. Anatomical terminology - Wikipedia

    en.wikipedia.org/wiki/Anatomical_terminology

    Anatomy is often described in planes, referring to two-dimensional sections of the body. A section is a two-dimensional surface of a three-dimensional structure that has been cut. A plane is an imaginary two-dimensional surface that passes through the body.

  8. Prime mover (locomotive) - Wikipedia

    en.wikipedia.org/wiki/Prime_mover_(locomotive)

    The prime mover can also be a gas turbine instead of a diesel engine. In either case, the generator, traction motors and interconnecting apparatus are considered to be the power transmission system and not part of the prime mover. A wired-electric or battery-electric locomotive has no on-board prime mover, instead relying on an external power ...

  9. Tractor unit - Wikipedia

    en.wikipedia.org/wiki/Tractor_unit

    Peterbilt 386 sleeper-cab–style commercial 6×4 tractor unit. A tractor unit, also known as a truck unit, lorry unit, power unit, prime mover, ten-wheeler, semi-tractor, semi-truck, semi-lorry, tractor cab, truck cab, lorry cab, big rig tractor, big rig truck or big rig lorry or simply a tractor, truck, lorry, semi, big rig or rig, is a characteristically heavy-duty towing engine that ...