Muscle Action Flashcards
Buccinator
Compress cheeks
Orbicularis oris
Compress and purse lips
Zygomatic major
Elevate corners of mouth
Orbicularis oculi
Closes eye
Masseter
Elevate mandible
Temporalis
Elevate mandible
Sternocleidomastoid
(Both) flex neck, (one) bend, turn head to opposite side
External oblique
Compress abdomen, flex spine
Internal oblique
Compress abdomen, flex spine
Transversus abdominus
Compress abdomen
Rectus abdominus
Compress abdomen, flex spine
Diaphragm
Expand thoracic cavity
Rhomboid major/minor
Adduct scapula
Trapezius
Elevate, rotate scapula, extend neck
Deltoid
Abduct arm
Supraspinatus
Abduct arm
Infraspinatus
Laterally rotate arm
Teres minor
Laterally rotate arm
Pectoralis major
Flex, adduct, medially rotate arm
Latissimus Dorsi
Extend, adduct, medially rotate arm
Triceps brachii (long, short)
Flex arm and forearm, supinate forearm
Coracobrachialis
Flex forearm
Supination
Supinate forearm
Pronator teres
Probate forearm
Flexor Capri radialis
Flex wrist
Flexor Capri ulnaris
Flex wrist
Palmaris longus
Flex wrist
Flexor digitorum superficialis
Extend wrist
Extensor Capri unlaris
Extend wrist
Extensor digitorum
Extend fingers
Gluteus Maximus
Extend, laterally rotate thigh
Gluteus medius
Abduct thigh
Tensor fascia latae
Flex, medially rotate thigh
Iliopsoas
Flex thigh
Rectus femoris
Flex thigh, extend leg
Vastus medialis / intermedius lateralis
Extend leg
Gracilis
Adduct thigh
Sartorius
Flex, laterally rotate thigh, flex leg
Biceps fermoris
Extend thigh, flex leg
Semitendinosus
Extend thigh, flex leg
Semimembranosus
Extend thigh, flex leg
Tibialis anterior
Dorsiflexion
Gastrocnemius
Flex leg, plantarflexion
Soleus
Plantarflexion