““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