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Milady ch 6 - 4

Muscular system vocabulary

Trapezius LaTissimus Dorsi Covers the upper and middle region of the back, helps in the movement of the shoulder and head, draws the arm backward and downward.
Pectoralis Major The muscle that extends from the shoulder down to the chest and helps the arms to move forward.
Pectoralis Minor located under the pectoralis major and extends over the shoulder to help
Deltoid Large, thick, triangular muscle which covers and shapes the shoulder. It's function is to lift and tun the arm
Biceps the two-headed muscle of the upper arm located on the front of the upper arm, it's function is to flex the elbow, if the palms are downward it also lifts the forearm.
Triceps three headed muscle that covers the entire back of the the upper arm, it's function is to EXTEND THE FOREARM
Pronarots turns the hand inward so the palm faces down
Supinator turns the hand outward so the palm faces up.
Flexors bend the wrist, draw the hand upward, and close the fingers into a fist
Extensor straightens the wrist, hand, and fingers to form a straight line
Abductors separate the fingers
Adductors draw the fingers together
Opponets located in the palm of the hand and bring the thumb toward the fingers allowing the grasping actions of the hands.
Extensor Digitrum Longus bends the foot up and extends the toes
Peroneus Brevis Originates on the lower surface of the fibula it bends the foot down and out
Peroneus Longues covers the outer side of the calf and invert the foot and turns it outward.
Gastroenemius is attached to the lower rear surface of the heel and pulls down the foot
Soleus Originates at the upper portion of the fibula and beds the foot down
Striated Muscles voluntary movement muscles that make up 45% of body weight ewsponsible for walking, running, jumping,throwing,lifting, or turning your head.
Non-Striated Muscles involuntary movement muscles that aid in body function. Found in the lungs, stomach, kidneys, and intestines
Cardiac muscle This involuntary muscle is found only in the heart.
Origin non-movable part of the muscle that is attached to the skeleton
Insertion movable part of the muscle
Belly middle part of the muscle
Myology The scientific study of muscles.
Created by: beckieharris