Axial

Front 1

trapezius

Back 1

N - spinal accessory & cervical plexus (C11)
Upper fibers - extend head & neck, rotate head & neck to opposite side; elevate scapula
Middle fibers - adduct & stabilize scapula
Lower fibers - depress scapula; upwardly rotate scapula

Front 2

latissimus dorsi

Back 2

N - thoracodorsal
A - extend, adduct & medially rotate SHO
O - spinous processes of last 6 thoracic vertebrae
I - crest of lesser tubercle of humerus

Front 3

supraspinatus

Back 3

N - suprascapular
A - abduct sho & stabilize head of humerus
O- supraspinous fossa of scapula
I - greater tubercle of humerus

Front 4

infraspinatus

Back 4

N - suprascapular (HUGE C5)
A - laterally rotate, adduct, extend, horizontally abduct SHO & stabilize head of humerus (JUST LIKE teres minor)
O - infraspinous fossa of scapula
I - greater tubercle of humerus

Front 5

teres minor

Back 5

N - axillary
A - laterally rotate, adduct, extend, horizontally abduct SHO, & stabilize head of humerus (JUST LIKE INFRASPINATUS)
O - superior half of lateral border of scapula
I - greater tubercle of humerus

Front 6

teres major

Back 6

N - subscapular
A - extend, adduct, medially rotate SHO
O - lateral side of inferior angle & lower half of lateral border of scapula
I - crest of lesser tubercle of humerus

Front 7

levator scapulae

Back 7

N - dorsoscapular & cervical NN
A - elevate scapula, extend head & neck, laterally flex & rotate to same side of head & neck, downward rotate scapula
O - transverse processes of 1-4 cervical vertebrae
I - upper region of medial border & superior angle of scapula

Front 8

rhomboids major & minor

Back 8

N - dorsal scapular & brachial plexus
A - adduct, elevate & downwardly rotate scapula
O - major (spinous process T2-T5); minor spinous process (C7-T1)
I - major (medial border of scapula between spine of scapula & inferior angle); minor (upper portion of medial border of scapula, across from spine of scapula)

Front 9

serratus anterior

Back 9

N - long thoracic (C5)
A - abduct & depress scapula (protracts & lays down like in push ups); hold medial border of scapula against rib cage; may act in forced inhalation
O - surfaces of upper 8 or 9 ribs
I - anterior surface of medial border of scapula

Front 10

pectoralis major

Back 10

N - medial & lateral pectoral
A - adduct, medially rotate SHO; elevate thorax in forced inhalation
O - medial half of clavicle, sternum, cartilage of 1-6 ribs
I - crest of greater tubercle of humerus

Front 11

pectoralis minor

Back 11

N - medial pectoral
A - depress & abduct scapula
O - 3-5 ribs
I - coracoid process of scapula

Front 12

erector spinae

Back 12

Intermediate spine MM
N - dorsal primary divisions of spinal NN
A - laterally flex to same side; extend vertebral column

Front 13

deep back MM

Back 13

transversospinalis, semispinalis, multifidi, rotators

Front 14

posterior abdominal wall

Back 14

what portion of abdomin?
- psoas major
- iliacus
- quadratus lumborum
- transverse abdominis

Front 15

psoas major

Back 15

N - lumbar plexus
A - flex hip, laterally rotate, adduct hip (same as iliacus)
O - bodies & transverse processes of lumbar vertebrae
I - lesser trochanter

Front 16

iliacus

Back 16

N - femoral
A - flex, latearlly rotate & adduct hip (same as psoas major)
O - iliac fossa
I - lesser trochanter

Front 17

quadratus lumborum

Back 17

N - branches of first lumbar & 12th thoracic
A - hip hike; bring hip forward when walking
O - posterior iliac crest
I - last rib & transverse process of 1-4 lumbar vertebrae

Front 18

transverse abdominis

Back 18

girdle; deepest abs; feel pressure on back when you suck in to zip zipper