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trunk muscles

MuscleOriginInsertionAction
rectus abdominis pubic crest and symphysis cartilage of 5 to 7 ribs and xyphoid process flex vertebral column and compress abdomen
external oblique inferior 8 ribs iliac crest and linea alba flex vertebral column and compress abdomen laterally flex and rotate vertebral column
internal oblique iliac crest and inguinal ligament cartilage of last 4 ribs and linea alba flex vertebral column and compress abdomen laterally flex and rotate vertebral column
transversus abdominis iliac crest and inguinal ligament xyphoid process, linea alba and pubis compress abdomen
inguinal ligament anterior superior iliac spine pubic tubercle (blank)
external intercostals inferior border of rib above superior border of rib below contraction increases rib cage dimentions
internal intercostals superior border of rib below inferior border of rib above contraction decreases rib cage dimentions
diaphragm xyphoid process of sternum and adjacent ribs central tendon contraction increases rib cage dimentions
serratus anterior ribs scapula stabilize, abduct and rotate scapula
latissimus dorsi ribs intertubercular sulcus of humerus extend, adduct and medially rotate arm at shoulder
Created by: hholly
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