Muscles Grouped by Action Flashcards
Shoulder Flexion
*Deltoid (anterior)
Pec Major (upper fibers)
Biceps
*Coracobrachialis
Shoulder Extension
*Deltoid (post)
*Lats
Triceps (long head)
Teres Major
Pec Major (lower fibers)
Shoulder Horizontal Abduction
posterior deltoid
Shoulder Horizontal Adduction
Anterior deltoid Pectoralis major (upper fibers)
Shoulder Abduction
- Deltoid
* Supraspinatus
Shoulder adduction
*Lats Teres major Infraspinatus Teres minor *Pectoralis major (all fibers) Triceps- long head coracobrachialis
Shoulder ER
posterior delt
- infraspinatus
- teres minor
Shoulder IR
anterior deltoid *lats teres major subscapularis *pectoralis major (all fibers)
Scapular elevation
*Trapezius (upper fibers)
Rhomboids
*Levator scapula
Scapular depression
Lower Trapezius
serratus anterior (with origin fixed)
Pectoralis minor
Scapular adduction/retraction
middle trapezius
*Rhomboids
Scapular abduction/protraction
*serratus anterior (with origin fixed)
pec minor
Scapular upward rotation
upper and lower trapezius
serratus anterior
Scapular downward rotation
rhomboids
levator scapula
pec minor
Elbow flexors
*biceps brachii
*brachialis
brachioradialis
flexor carpi radialus
flexor carpi ulnaris
palmaris
Elbow extension
*triceps (all heads)
anconeus
Forearm supination
*biceps brachii
*supinator
brachioradialis
Forearm pronation
*pronator teres
*pronator quadratus
brachioradialis
Wrist Flexion
*flexor carpi radialis
*flexor carpi ulnaris
palmaris longus
flexor digtorum superficialis
flexor digitorum profundus
flexor polliis longus
Wrist extension
*extensor carpi radialis longus
*extensor carpi radialis brevis
extensor carpi ulnaris
extensor digitorum
extensor indicis
Radial deviation
*extensor carpi radialis longus
*extensor carpi radialis brevis
extensor pollicis longus
extensor pollicus brevis
flexor carpi radialis
abductor pollicis longus
Ulnar deviation
- extensor carpi ulnaris
* flexor carpi ulnaris
Extension of fingers 2-5
Extensor digitorum Lumbricals Dorsal interossei (2-4) Palmar interossei (2, 4, 5) Extensor indicis
Flexion of fingers 2-5
Flexor digitorum superficialis Flexor digitorum profundus Flexor digiti minimi brevis (5th) Lumbricals Dorsal interossei (2-4) Palmar interossei (2, 4, 5)
Thumb flexion
Flexor pollicis longus and brevis Adductor pollicis Palmar interossei (1st)
Thumb extension
Extensor pollicis longus and brevis Abductor pollicis longus Palmar interossei (1st)
Thumb opposition
opponens pollicis
Flexor pollicis brevis
Abductor pollicis brevis
Hip flexion
*iliopsoas
*TFL
Sartorius
Rectus femoris
Gluteus medius (anterior fibers)
Gluteus minimus
Adductor longus, bravis, magnus -assists
Pectineus -assists
Hip extension
*Gluteus maximus- all
*Hamstrings- all
Adductor magnus (posterior fibers)
Gluteus medius (posterior fibers)
Hip IR
*Gluteus medius (anterior fibers)
*Gluetus minimus
*TFL
Adductor magnus, longus & brevis
Pectineus
Gracilis
Semitendinosus -assists
Semimembranosus -assists
Hip ER
Gluteus maximus -all fibers Piriformis *Quadratus femoris *Obturator internus *Obturator externus *Gemellus superior *Gemellus inferior Iliopsoas Sartorius Biceps femoris (long head) -assists
Hip abduction
Gluteus maximus (all fibers) *Gluteus medius (all fibers) *Gluteus minimus TFL Sartorius Piriformis (when the hip is flexed)
Hip adduction
Adductor magnus Adductor longus Adductor brevis Gracilis Pectineus Gluteus maximus (lower fibers)
Knee flexion
*hamstrings gracilis sartorius gastrocnemius popliteus plantaris -weak
Knee extension
*quads femoris
Tibial IR
*semitendinosus
*semimembranosus
*popliteus
gracilis
sartorius
Tibial ER
biceps femoris
Ankle PF
*Gastrocnemius
*Soleus
Tibialis posterior
Peroneus longus and brevis -assists
Flexor digitorum longus -weak
Flexor hallucis longus -weak
Plantaris -weak
Ankle DF
*Tibialis anterior
*Extensor digitorum longus
Extensor hallucis longus
Inversion
*Tibialis anterior
*Tibialis posterior
Flexor digitorum longus
Flexor hallucis longus
Extensor hallucis longus
Eversion
Peroneus longus
Peroneus brevis
Extensory digitorum longus
Flexion of toes 2-5
flexor digitorum longus and brevis lumbricals quadratus plantae -assists dorsal interossei plantar interossei abductor digiti minimi flexor digiti minimi brevis
Extension of toes 2-5
extensor digitorum longus
extensor digitorum brevis
lumbricals
Vertebral flexion
rectus abdominals external oblique (bilaterally) internal oblique (bilaterally) iliopsoas (with origin fixed)
Vertebral extension
longissimus (bilaterally) iliocostalis (bilaterally) multifidi (bilaterally) rotatores (bilaterally) semispinalis capitis spinalis (bilaterally) quadratus lumborum -assists interspinalis intertransversarii (bilaterally) lats - assists when arm is fixed
spinal rotation
external oblique (to opposite side)
internal oblique (to same side)
multifidi (opposite)
rotatores (opposite)
vertebral lateral flexion
iliocostalis external oblique internal oblique longissimus quadratus lumborum posts major -assists intertransversarii spinalis lats -assists
inhalation
rib elevation/expansion
scalanes (bilaterally) SCM -assists external intercostals -assists serratus posterior superior pec major - all fibers may assist if arm is fixed) pec minor - if scapula is fixed serratus anterior - if scapula is fixed subclavius
exhalation
rib depression/collapse
internal intercostals -assists
serratus posterior inferior
Cervical flexion
SCM (bilaterally) anterior scalene (bilaterally) longus capitis (bilaterally) longus colli (bilaterally)
Cervical extension
trapezius (upper fibers) (bilaterally) levator scapula (bilaterally) splenius capitis and cervicis (bilaterally) suboccipitals semispinalis capitis longissimus capitis and cervicis (assists) multifidi (bilaterally) rotatores (bilaterally) intertransversarii (bilaterally) interspinalis
Cervical rotation to SAME side
levator scap splenus capitis and cervicis rectus capitis posterior major oblique captifs inferior longus colli longus capitis longissimus capitis and cervicis (assists) iliocostalis cervicis (assists)
Cervical rotation to OPPOSITE side
trapezius (upper fibers) SCM scalene multifidi rotatores
Cervical lateral flexion
trap (upper fibers) levator scapula SCM scalenes (with ribs fixed) splenius capitis and cervicis longus capitis and colli longissimus capitis and cervicis iliocostalis cervicis oblique captifs superior intertransversarii
