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31 terms

Muscular System

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Abduction
moving a body part away from the midline.
Adduction
moving a body part toward the midline.
Cardiac muscle
form the walls of the heart and contract to circulate blood.
Contract .
to shorten, decrease in size, or draw together
Contracture
tightening or shortening of the muscle
Elasticity
allows muscles to return to its original shape after it has contracted
muscular system
bundles of muscle fibers held together by connective tissue
Extension
increasing the angle between two bones or straightening a body part.
Fascia
fibrous membrane covering, supporting and separating muscle.
Flexion part.
decreasing the angle between two bones or bending a body
Insertion
end or area of a muscle that moves when muscle contracts.
Involuntary
independent action
Muscle tone
state of partial muscle contraction providing as state of readiness to act.
Origin
end or area of muscle that remains stationary when muscle
Rotation
a circular motion that turns a body part on its axis
Skeletal muscle
attached to bones and cause body movement.
Tendon
fibrous connective tissue that connects muscles to bones.
Visercal (smooth) muscle -
are found in internal organs of the body such as the digestive system, respiratory system, blood vessels and eyes.
Voluntary
Skeletal
Contractibility
when muscle fibers are stimulated by nerves, they contract or become short and thick.
Circumduction
moving in a circle at a joint. Moving one end of a body part in a circle while the other end remains stationary; swinging the arm in a circle.
Hyperextension
excessive straightening of a body part.
Pronation
turning a body part downward (turning palm down)
Supination
turning a body part upward (turning palm up)
Opposition
touching each of the fingers with the tip of the thumb.
Inversion
turning a body part inward.
Eversion
turning a body part outward.
Dorsiflexion
bending backward (bending the foot toward the knee)
Plantar flexion
bending forward (straightening the foot away from the knee)
Radial deviation
moving toward the thumb side of the hand.
Ulnar deviation
moving toward the little finger side of the hand.