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Chapter 9
Anatomy
Muscles | Function |
---|---|
sternocleidonmastoid (located in neck) | flexes head |
trapezius (located in back) | extends upper arm |
latissimus dorsi (located in back) | extends upper arm |
external oblique (located in abdominal wall) | compresses abdomen |
deltoid (shoulder) | abducts upper arm |
pectoralis major (shoulder) | abducts upper arm |
serratus anterior (shoulder) | abducts upper arm |
biceps brachii (upper arm) | flexes forearm |
triceps brachii (upper arm) | extends forearm |
brachialis (upper arm) | flexes forearm |
brachioradialis (forearm) | flexes forearm |
pronator teres (forearm) | pronates, flexes forearm |
gluteus maximus (buttocks) | extends thigh |
gluteus minimus (buttocks) | abducts thigh |
gluteus medius (buttocks) | abducts thigh |
rectus femoris part of the quadriceps femoris group (anterior surface of thigh) | flexes thigh |
vastus lateralis part of the quadriceps femoris group (anterior surface of thigh) | extends leg |
vastus medialis part of the quadriceps femoris group (anterior surface of thigh) | extends leg |
vastus intermedius part of the quadriceps femoris group (anterior surface of thigh) | extends leg |