““Movers and Shakers”Movers and Shakers”
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Head and Neck MuscleHead and Neck Muscle
Muscles of Facial ExpressionMuscles of Facial Expression
Name of the Name of the MuscleMuscle
Action/sAction/s
FrontalisFrontalis Wrinkles the foreheadWrinkles the forehead
Elevates eyebrowsElevates eyebrows
Corrugator Corrugator superciliisupercilii
Draws eyebrows to Draws eyebrows to midlinemidline
Orbicularis oculiOrbicularis oculi Closes the eyeCloses the eye
BuccinatorBuccinator Compresses cheekCompresses cheek
Muscles of Facial ExpressionMuscles of Facial Expression
Name of the Name of the MuscleMuscle
Action/sAction/s
ZygomaticusZygomaticus Elevates corner of the mouthElevates corner of the mouth
RisoriusRisorius Draws corner of mouth Draws corner of mouth laterallylaterally
MentalisMentalis Protrudes lower lipProtrudes lower lip
PlatysmaPlatysma Depresses mandible and Depresses mandible and lower liplower lip
Muscles of Facial ExpressionsMuscles of Facial Expressions
FrontalisFrontalis
Corrugator superciliiCorrugator supercilii
Orbicularis oculiOrbicularis oculi
Orbicularis orisOrbicularis oris
BuccinatorBuccinator
ZygomaticusZygomaticus
RisoriusRisorius
MentalisMentalis
PlatysmaPlatysma
Bell’s Palsy (Facial Paralysis)Bell’s Palsy (Facial Paralysis)
Muscles of MasticationMuscles of Mastication
Name of the Name of the MuscleMuscle
Action/sAction/s
MasseterMasseter Elevates the mandibleElevates the mandible
TemporalisTemporalis Elevates the mandibleElevates the mandible
Muscles of MasticationMuscles of Mastication
Posterior Muscles of the NeckPosterior Muscles of the Neck
Name of the MuscleName of the Muscle Action/sAction/s
SternocleidomastoidSternocleidomastoid Rotates head, flexes neckRotates head, flexes neck
TrapeziusTrapezius Moves shoulder: adducts Moves shoulder: adducts and elevatesand elevates
Posterior Muscles of the NeckPosterior Muscles of the Neck
TrapeziusTrapezius
SternocleidomastoidSternocleidomastoid
SternocleidomastoidSternocleidomastoid
Suprahyoid MusclesSuprahyoid Muscles
Name of the Name of the MuscleMuscle
Action/sAction/s
DiagastricDiagastric Opens mouth, elevates hyoidOpens mouth, elevates hyoid
MylohyoidMylohyoid Elevates hyoid and floor of mouthElevates hyoid and floor of mouth
GeniohyoidGeniohyoid Elevates hyoid and protracts the Elevates hyoid and protracts the tonguetongue
GenioglossusGenioglossus Protracts the tongueProtracts the tongue
StyloglossusStyloglossus Retracts and elevates tongueRetracts and elevates tongue
StylohyoidStylohyoid Retracts and elevates tongueRetracts and elevates tongue
Suprahyoid MusclesSuprahyoid MusclesDigastricDigastric
MylohyoidMylohyoid
Infrahyoid MusclesInfrahyoid Muscles
Name of the Name of the MuscleMuscle
Action/sAction/s
SternohyoidSternohyoid Depresses hyoidDepresses hyoid
SternothyroidSternothyroid Depresses thyroid cartilageDepresses thyroid cartilage
ThyohyoidThyohyoid Depresses hyoid bone, Depresses hyoid bone, elevates larynxelevates larynx
Infrahyoid MusclesInfrahyoid Muscles
Muscles of the Body wallMuscles of the Body wall
Muscles of the ThoraxMuscles of the Thorax
Muscles of RespirationMuscles of Respiration
Name of the MuscleName of the Muscle Action/sAction/s
External intercostalsExternal intercostals Elevate ribsElevate ribs
(Inspiration)(Inspiration)
Internal intercostalsInternal intercostals Depress ribsDepress ribs
(Expiration)(Expiration)
DiaphragmDiaphragm Chief muscle of Chief muscle of inspirationinspiration
Muscles of RespirationMuscles of Respiration
Abdominal Wall MusclesName of the Name of the
MuscleMuscleAction/sAction/s
Rectus abdominisRectus abdominis Flexes vertebral column, Flexes vertebral column, compresses abdomencompresses abdomen
External oblique External oblique abdominisabdominis
Compresses abdomen, lateral Compresses abdomen, lateral trunk rotationtrunk rotation
Internal oblique Internal oblique abdominisabdominis
Compresses abdomen, lateral Compresses abdomen, lateral trunk rotationtrunk rotation
Transversus Transversus abdominisabdominis
Compresses abdomen, lateral Compresses abdomen, lateral trunk rotationtrunk rotation
Abdominal Wall MusclesAbdominal Wall Muscles
Muscles of the Posterior ThoraxMuscles of the Posterior Thorax
Name of the MuscleName of the Muscle Action/sAction/s
Serratus anteriorSerratus anterior Pulls scapula forward and Pulls scapula forward and downdown
Levator scapulaeLevator scapulae Elevates scapulaElevates scapula
Rhomboideus major Rhomboideus major and minorand minor
Adduct scapulaAdduct scapula
TrapeziusTrapezius Moves shoulder: adducts and Moves shoulder: adducts and elevateselevates
Muscles of the Posterior ThoraxMuscles of the Posterior Thorax
Muscles of the Posterior ThoraxMuscles of the Posterior Thorax
Muscles of the ShoulderMuscles of the Shoulder
Name of the MuscleName of the Muscle Action/sAction/s
Pectoralis majorPectoralis major Flexes, adducts, and Flexes, adducts, and rotates armrotates arm
Pectoralis minorPectoralis minor Pulls scapula forward and Pulls scapula forward and downdown
DeltoidDeltoid Abducts armAbducts arm
Muscles of the ShoulderMuscles of the Shoulder
Name of the MuscleName of the Muscle Action/sAction/s
Lattisimus dorsiLattisimus dorsi Extends, adducts, and Extends, adducts, and rotates arm mediallyrotates arm medially
Teres majorTeres major Extends, adducts, and Extends, adducts, and rotates arm mediallyrotates arm medially
Teres minorTeres minor Rotates arm mediallyRotates arm medially
Muscles of the ShoulderMuscles of the Shoulder
DeltoidDeltoid
Muscles of the ArmMuscles of the ArmName of the Name of the
MuscleMuscleAction/sAction/s
Biceps brachiiBiceps brachii Flexes forearmFlexes forearm
BrachialisBrachialis Flexes forearmFlexes forearm
BrachioradialisBrachioradialis Flexes forearmFlexes forearm
Muscles of the ForearmMuscles of the ForearmName of the Name of the
MuscleMuscleAction/sAction/s
Pronator teresPronator teres Pronates forearmPronates forearm
SupinatorSupinator Supinates forearmSupinates forearm
Triceps braciiTriceps bracii Extends forearmExtends forearm
Muscles of the ArmMuscles of the Arm
Biceps brachiiBiceps brachii
BrachialisBrachialis
Teres minorTeres minor
InfraspinatusInfraspinatus
SupraspinatusSupraspinatus
Triceps brachiiTriceps brachii
Muscles of the forearmMuscles of the forearm
Name of the MuscleName of the Muscle Action/sAction/s
Flexor carpi radialisFlexor carpi radialis Flexes and abducts the Flexes and abducts the wristwrist
Flexor carpi ulnarisFlexor carpi ulnaris Flexes and adducts the Flexes and adducts the wristwrist
Flexor digitorum Flexor digitorum superficialis and superficialis and profundusprofundus
Flex the wrist and digitsFlex the wrist and digits
Muscles of the forearmMuscles of the forearm
Name of the MuscleName of the Muscle Action/sAction/s
Extensor carpi radialis Extensor carpi radialis longuslongus
Extends wristExtends wrist
Extensor carpi ulnarisExtensor carpi ulnaris Extends wristExtends wrist
Extensor digitorumExtensor digitorum Extends wrist and digitsExtends wrist and digits
Muscles of the ForearmMuscles of the Forearm
Muscles of the HipMuscles of the Hip
Muscles of the Gluteal RegionMuscles of the Gluteal Region
Name of the MuscleName of the Muscle Action/sAction/s
Gluteus maximusGluteus maximus Extends and rotates Extends and rotates thigh laterallythigh laterally
Gluteus mediusGluteus medius Abducts and rotates Abducts and rotates thigh mediallythigh medially
Gluteus minimusGluteus minimus Abducts and rotates Abducts and rotates thigh mediallythigh medially
Tensor fasciae lataeTensor fasciae latae Abducts and rotates Abducts and rotates thigh mediallythigh medially
Muscles of the Gluteal RegionMuscles of the Gluteal Region
AdductorsAdductorsName of the MuscleName of the Muscle Action/sAction/s
Adductor longusAdductor longus Flexes, adducts, and Flexes, adducts, and rotates thigh mediallyrotates thigh medially
Adductor brevisAdductor brevis Flexes, adducts, and Flexes, adducts, and rotates thighrotates thigh
Adductor magnusAdductor magnus Flexes, adducts, and Flexes, adducts, and rotates thighrotates thigh
AdductorsAdductors
Muscles of the ThighMuscles of the Thigh
Flexors (Hamstrings)Flexors (Hamstrings)Name of the MuscleName of the Muscle Action/sAction/s
GracilisGracilis Flexes leg and adducts thighFlexes leg and adducts thigh
SartoriusSartorius Flexes leg and thigh, and Flexes leg and thigh, and abducts and rotates thighabducts and rotates thigh
Biceps femorisBiceps femoris Flexes leg and extends and Flexes leg and extends and adducts thighadducts thigh
SemimembranosusSemimembranosus Flexes leg and extends and Flexes leg and extends and adducts thigh, medially rotates adducts thigh, medially rotates thighthigh
SemitendinosusSemitendinosus Flexes leg and extends and Flexes leg and extends and adducts thigh, medially rotates adducts thigh, medially rotates thighthigh
Flexors (Hamstrings)Flexors (Hamstrings)
Extensors (Quadriceps)Extensors (Quadriceps)
Name of the MuscleName of the Muscle Action/sAction/s
Rectus femorisRectus femoris Extend leg, and flex thighExtend leg, and flex thigh
Vastus medialisVastus medialis Extend legExtend leg
Vastus lateralisVastus lateralis Extend legExtend leg
Vastus intermediusVastus intermedius Extend legExtend leg
Extensors (Quadriceps)Extensors (Quadriceps)
Muscles of the LegMuscles of the Leg
Muscles that move the footMuscles that move the footName of the MuscleName of the Muscle Action/sAction/s
GastrocnemiusGastrocnemius Planter flexes footPlanter flexes foot
SoleusSoleus Planter flexes footPlanter flexes foot
Peroneus longusPeroneus longus Planter flexes and evertsPlanter flexes and everts
Peroneus brevisPeroneus brevis Planter flexes and evertsPlanter flexes and everts
Peroneus tertiusPeroneus tertius Dorsiflexes and evertsDorsiflexes and everts
Tibialis anteriorTibialis anterior Dorsiflexes and invertsDorsiflexes and inverts
Muscles that move the footMuscles that move the foot
Muscles that move the toesMuscles that move the toes
Name of the MuscleName of the Muscle Action/sAction/s
Flexor digitorum Flexor digitorum longuslongus
Flexes the toesFlexes the toes
Extensor digitorum Extensor digitorum longuslongus
Extends the toesExtends the toes
Muscles that move the ToesMuscles that move the Toes
Got “Movements”Got “Movements”
Quadriplegia due to Spinal cord injury
Paralysis
Myesthenia gravis
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