Muscular System #3
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What is an attachment site that does not move?
Origin
What is an attachment site that does move?
Insertion
What is the name of the muscle that is responsible for most of the movement?
Prime mover/ agonist
What is the name of the muscles that helps the prime mover by stabilizing joints?
Synergist
What produces movement opposite to the prime mover?
Antagonist
What is the anatomical term that means wasting away of a muscle?
Atrophy
What motion describes bending a body part so that the angle is decreased?
Flexion
What motion describes straightening a body part so that angle is increased?
Extension
What movement describes turning the foot and ankle inward?
Inversion
What movement describes turning the foot and ankle outward?
Eversion
What movement describes turning the palm of the hand downward?
Pronation
What movement describes turning the palm of the hand upward?
Supination
What muscle pulls the head to one side?
Sternocleidomastoid
What muscles raise the eyebrows?
Frontalis
What muscle abducts and extends the arm at the shoulder?
Deltoid
What muscle flexes the arm at the elbow?
Biceps brachill
What muscle extends the arm at the elbow?
Triceps brachili
What muscles pull the arm across the chest?
Pectoralis major
What muscle flexes and abducts the wrist?
Flexor carpi radials/ulnaris
What muscle extends the wrist?
Extensor carpi ulnaris
What anatomical structure separates the thoracic cavity from the abdominal cavity?
Diaphragm
What muscle extends the finger but not the thumb?
Extensor digitorum
What muscle expands and lowers the ribs during breathing?
External and internal intercoastals
What muscle compresses the abdominal wall?
External/Internal obliques