Ventral side muscles
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10 Terms
Pectoralis major
Origin- Clavicle
Insertion-humerus
Action- arm flexion
Serratus anterior
Origin-ribs
Insertion -scapula
Action-abduction of scapula
Internal intercostals
Origin- superior border of rib below
Insertion-inferior border of rib above
Action- pulls ribs together to depress
Diaphragm
Origin-sternum
Insertion -central tendon
Action-inspiration
Rectus abdominis
Origin-pubic bone
Insertion -xiphoid process of the sternum
Action-rotates vertebral cloumn
External obliques
Origin-ribs
Insertion -pubic bone
Action-compress the abdominal wall
Internal obliques
Origin-ilium
Insertion- pubic bone
Action- compress abdominal wall
Transverse abdominis
Origin-ilium
Insertion- pubic bone
Action-compress abdominal contents
Pectoralis minor
Origin-ribs
Insertion -coracoid process of the scapula
Action-inferior scapula movement
External intercostals
Origin- inferior border of ribs above
Insertion -superior border of ribs below
Action-pulls ribs together to elevate
Note 
Flashcards (52)