Superficial Back Muscles
Deep Back Muscles
Chest Muscles
Abdominal Muscles
Wild Card
100
Latissimus dorsi
100
Teres minor (thinner, superior) and Teres major (thicker, inferior)
100
Pectoralis major (primary muscles you think of when you hear "chest" are your pecs)
100
Rectus Abdominis
100
Subscapularis
200
Trapezius
200
Rhomboid minor (thinner, superior) and Rhomboid major (thicker, inferior)
200
Pectoralis Minor (smaller than major)
200
Internal abdominal oblique (comparatively medial) and External abdominal oblique (comparatively lateral)
200
This group of muscles runs nearly the entire length of the spine
Errector spinae
300
Deltoid
300
Infraspinatus (inferior to Supraspinatus)
300
Serratus anterior (think of a serrated knife, anterior on front side of body)
300
Transverse abdominis
300
Iliacus
400
This muscle is the largest muscle in the upper body
Latissimus Dorsi
400
Erector spinae
400
Consists of clavicular and sternal portions.
Pectoralis major
400
External intercostals
400
Psoas major (larger) and Psoas minor (smaller)
500
This muscle moves the scapula and supports the arm.
Trapezius
500
Supraspinatus (superior to Infraspinatus)
500
Triangular muscle beneath the Pectoralis major
Pectoralis minor
500
Internal intercostals
500
Serratus posterior inferior