Functional Anatomy

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12 Terms

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Articulation

Occurs where two or more bones meet to form a joint.

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Axial Skelton

Forms basic central structure to support the rest of bones and protect many vital organs (skulls protects brain, vertebrae protect spinal chord, ribs protect heart + lungs + kidneys)

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Appendicular Skeleton

Major role is to assist with movement and consists of major limbs (arms, legs, shoulder and pelvis)

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Movement

Occurs when tendons of the muscles which cross that joint exert a force on the bones resulting in movement taking place.

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Origin

The attachment of the muscle to the bone that doesn’t move.

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Insertion

The attachment of the muscle to the bone that moves.

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Agonist

Muscle responsible for the movement.

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Antagonist

The muscle that relaxes allowing movement to occur.

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Extensibility

the capacity of your muscles to stretch beyond normal resting length.

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Contractibility

The ability of your muscles to contract/shorten.

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Excitability

The ability of your muscles to contract in response to electrical/chemical signals.

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Elasticity

The ability of your muscles to return to their original position after stretching.