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Orbicularis oculi (Closes eye)

Orbicularis oris (Closes & protrudes lips)

Zygomaticus major (Elevates corner of mouth)

Zygomaticus minor (Elevates upper lip)

Depressor anguli oris ( Draws corners of mouth down)

Platysma ( Draws lower lip inferior & laterally, tenses skin of neck & chest)

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Masseter ( Elevates mandible )

Temporalis ( Elevates mandible)

Lateral pterygoid (Side to side movement of mandible)

top line

Sternocleidomastoid (Bilateral contraction (X2) = Flexion of head and neck. Unilateral contraction (X1) = rotation of head to opposite side)

Splenius capitis ( Bilateral contraction (X2) = Extension/hyperextension of head and neck. Unilateral contraction (X1) = rotation of head to same side)

Diaphragm ( contraction)

External intercostals ( Elevates ribs during inspiration)

Internal intercostals ( Depresses ribs )

Iliocostals ( prime movers of extension of vertebral column )

Longissimus (prime movers of extension of vertebral column)

Spinalis (prime movers of extension of vertebral column )

External oblique (X2 = flexion vertebral column, compresses abdominal cavity. Forced expiration X1 = lateral flexion & rotation of vertebral column)

internal oblique (X2 = flexion vertebral column, compresses abdominal cavity. Forced expiration X1 = lateral flexion & rotation of vertebral column)

Transversus abdominis ( X2 = flexion vertebral column, compresses abdominal cavity. Forced expiration X1 = lateral flexion & rotation of vertebral column)

rectus abdominis ( Flexes vertebral column )

Trapezius ( Upper fibers = elevates scapula Middle fibers = retracts scapula Lower fibers = depresses scapula)

Levator scapulae ( Elevates scapula)

Rhomboid minor ( Retracts (adducts) scapula)

Rhomboid major ( Retracts (adducts) scapula)

Pectoralis minor (Pulls scapula forward (protracts) & rotates scapula downward)

Serratus anterior ( Protracts scapula and rotates scapula upward)

Deltoid ( a.p = flexion and medial rotation of arm m.p. = prime mover arm abduction p.p. = extends & laterally rotates arm )

Latissimus dorsi (Prime mover of arm extension)

Teres major ( extends, medially rotates and adducts humerus)

Pectoralis major ( Adducts & medially rotates arm )

Supraspinatus ( Abducts arm at shoulder joint )

Infraspinatus ( Lateral rotation at shoulder joint )

Teres minor ( Lateral rotation at shoulder joint) )

Subscapularis (Medial rotation at shoulder joint)

Biceps brachii ( shoulder jt = flexion of arm, elbow jt = flexion of forearm )rm

Brachialis (Flexes forearm)

Brachioradialis ( Flexes forearm)

triceps brachii ( shoulder jt. = extends arm, elbow jt. = Prime mover of forearm extension.)

Pronator teres (pronates forearm)

Flexor carpi radialis ( Flexes wrist)

Palmaris longus (Flexes wrist)

Flexor carpi ulnaris (Flexes wrist)

Extensor carpi radialis longus (Extends wrist)

Extensor carpi radialis brevis (Extends wrist)

Extensor digitorum ( Prime mover finger extension. Helps with wrist extension)

Extensor carpi ulnaris (Extends wrist)

Psoas major ( Flexes thigh)

Iliacus ( Flexes thigh)

Sartorius ( flexes, abducts and laterally rotates thigh)

Rectus femoris ( Flexion of thigh at hip Extends knee joint)

Gluteus maximus ( Extends hip joint)

*Biceps femoris ( Extends thigh (hip joint) * Flexes knee joint)

Semitendinosus ( Extends thigh (hip joint) * Flexes knee joint)

Semimembranosus (Extends thigh (hip joint) * Flexes knee joint)

Tensor fasciae latae ( Abducts thigh)

Gluteus medius ( Abducts thigh)

Gluteus minimis ( Abducts thigh)

Pectineus ( Adducts thigh)

Adductor longus ( Adducts thigh)

Adductor magnus ( Adducts thigh)

Gracilis ( Adducts thigh )

*Rectus femoris ( Flexes hip joint Extends knee joint)

Vastus medialis ( Extends knee joint)

Vastus lateralis ( Extends knee joint)

Vastus intermedius (Extends knee joint)

Biceps femoris( Extends hip joint *Flexes knee joint)

*Semitendinosus (Extends hip joint Flexes knee joint)

Semimembranosus (Extends hip joint Flexes knee joint)

Tibialis anterior (Inversion of foot)

Extensor digitorum longus ( Extension of toes 2-5)

Extensor hallucis longus ( Extension of hallux(great toe))

Fibularis (Peroneus) longus(Eversion of foot)

Fibularis (Peroneus) brevis( Eversion of foot)

Gastrocnemius(Plantar flexion of foot at ankle)

Soleus ( Plantar flexes foot at ankle)

Flexor digitorum longus (Flexion of toes 2-5)

Flexor hallucis longus ( Flexion of hallux “push off” muscle during walking)

Tibialis posterior ( -Inversion of foot)

*Popliteus ( Medial rotation of tibia at knee to help “unlock” knee after standing)