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Myology2test4

Muscle & levers

QuestionAnswer
The aspect of a muscle strength generated by the muscle itself? Intrinsic strength
Tension of a muscle created by the elastic recoil of its fascia? Passive tension
Tension created by the sliding filament mechanism of the muscle contraction? Active tension
muscle which has fibers arranged in a featherlike manner? pennate muscle
What is a rigid bar that can move? Lever
another name for lever arm? Moment arm
What type of lever is a seesaw? First class lever
What type of lever is a wheel barrow? Second class lever
What is the term for weakness in the muscle as a result in a decrease in myosin-actin cross bridges? active insufficiency
The term for the location at which the movement of a lever occurs? axis of motion
What type of lever is the brachialis? third class lever
Contributes to the intrinsic strength of a muscle? strength of the sliding filament mechanism
the distance from the end of the bone to the center of the joint? lever arm
Fusiform is what type of muscle? longitudinal muscle
Example of a unipennate muscle? vastus lateralis
graph comparing the length of the muscle to the strength of the muscle? length-tension relationship curve
Term for one motor neuron and the? muscle fibers it innervates motor unit
the advantage of being able to move heavy objects with less effort? mechanical advantage
force outside the body? external force
force generated inside the body? internal force
Sartorius is an example of what type of longitudinal muscle? strap muscle
Brachialis is an example of what type of longitudinal muscle? fusiform or spindle
Pectoralis major is an example of what type of longitudinal muscle? triangular
Rectus femoris is an example of what type of pennate muscle? bipennate
Deltoid is an example of what type of pennate muscle? multipennate
The hierarchy of recruiting small motor units and then larger motor units is called? henneman size principle
the arrangement of muscle fibers within a muscle? muscle fiber architecture
angle of the muscle fiber relative to the central tendon of the muscle? pennation angle
Created by: centura
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