Muscle terminology Flashcards
Agonsit
A prime mover
Antagonist
A muscle that counteracts the action of another muscle
Atrophy
A wasting away of a body part or tissue (a decrease in size)
Hypertrophy
An increase in muscle size or overgrowth
Hypotonicity
Abnormal decrease in resting muscle tone.
Usually a long-standing problem
Soft and squishy to touch
Hypertonicity
Abnormal increase in resting muscle tone
Usually indicates an issue that causes inflammation and irritation to a peripheral nerve
Muscle feels tight and spasms may occur upon palpation
Insertion
Distal end of the muscle that has crossed at least one joint and attaches to a movable part (upon contraction movement will occur)
Origin
Proximal end of a muscle that is usually closest to the body. Serves as an anchor for movement during contraction
Extrinsic
A muscle in which the origin is in one system and the insertion bridges another system (axial or appendicular)
Intrinsic
Muscle whose origin begins in one system and insertion ends in the same system
Major
Greater in size or function
Minor
Lesser in size or function
Ascendens
A muscle lying in an upward or uphill direction
Cephalicus
Muscles originating near or at the head
Collagen
A fibrous insoluble protein found in the connective tissue, skin, ligaments, and cartilage
