Muscalar system

Moving a part away from thr midline of the body

• Abduction

• All or none

• Atrophy

Moving a part toward the midline

• Atrophy

• Adduction

• All or none

When a muscle fiber is subjected to a stimulus it contracts completely

• All or none

• Bursa

• Dorsiflexion

Other muscle that relaxes or produces movement in the opposite direction

• Antagonist

• Extension

• Flexion

Wasting away of tissue, decrease in size of a part, something referred to as disuse atrophy

• Atrophy

• Rotation

• Synergist

Small fluid-filled sacs

• Bursae

• Tendon

• Posture

Ankle, the dorsum or top of the foot is elevated with the toes pointing upward

• Dorsiflexion

• Stimulus

• Pronation

Movements are the opposite of flexions

• Extension

• Synergist

• Tonic contraction

Muscle fibers are stimulated repeatedly without adequate periods of rest, the strength of the muscle contraction

• Fatigue

• Atrophy

• Abduction

Movement that makes the angle between two bones at their joint smaller than it was at the beginning of the movement

• Flexion

• Myosin

• Motor unit