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19 Cards in this Set

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Movement

Change in position of body part

Origin

Least moveable point of attachment, usually closest to the midline

Insertion

Most moveable point of attachment, usually farthest from the midline

Innervation

Nerves that bring sensory or motor skills to an area

Palpitation

Ability to palpate or move a muscle

Contraction

The shortening of a muscle in response to a stimulation

Agonist

Muscle that produces movement

Antagonist

Muscle that produces opposite movement

Synergist

Enhance the movement of the prime mover

Prime Mover

The main muscle in a group that is primarily responsible for the movement

Atrophy

Muscles will decrease in size due to lack of use

Muscle Tone

A constant state of partial contraction

Kinesiology

Study of human movement

Isometric Contraction

A change in force against a muscle but the length stays the same

Pushing outward against a door frame

Isotonic Contraction

When a muscle shortens in length, the force of contraction is constant and the muscle changes.

Lifting a book

Eccentric

Muscle contraction that lengthens the muscle belly

Concentric

Muscle contraction whereby the muscle belly is shortened

Tetany

Sustained muscle contraction

Fixator

Specialized synergist