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“Movers and Shakers”
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A useful website
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Head and Neck Muscle
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Muscles of Facial Expression
Name of the Muscle Action/s Frontalis Wrinkles the forehead Elevates eyebrows Corrugator supercilii Draws eyebrows to midline Orbicularis oculi Closes the eye Buccinator Compresses cheek
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Muscles of Facial Expression
Name of the Muscle Action/s Zygomaticus Elevates corner of the mouth Risorius Draws corner of mouth laterally Mentalis Protrudes lower lip Platysma Depresses mandible and lower lip
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Muscles of Facial Expressions
Frontalis
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Corrugator supercilii
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Orbicularis oculi
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Orbicularis oris
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Buccinator
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Zygomaticus
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Risorius
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Mentalis
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Platysma
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Bell’s Palsy (Facial Paralysis)
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Muscles of Mastication
Name of the Muscle Action/s Masseter Elevates the mandible Temporalis
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Muscles of Mastication
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Posterior Muscles of the Neck
Name of the Muscle Action/s Sternocleidomastoid Rotates head, flexes neck Trapezius Moves shoulder: adducts and elevates
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Posterior Muscles of the Neck
Sternocleidomastoid Trapezius
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Sternocleidomastoid
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Suprahyoid Muscles Name of the Muscle Action/s Diagastric
Opens mouth, elevates hyoid Mylohyoid Elevates hyoid and floor of mouth Geniohyoid Elevates hyoid and protracts the tongue Genioglossus Protracts the tongue Styloglossus Retracts and elevates tongue Stylohyoid Retracts and elevates tongue
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Suprahyoid Muscles Digastric
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Mylohyoid
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Infrahyoid Muscles Name of the Muscle Action/s Sternohyoid
Depresses hyoid Sternothyroid Depresses thyroid cartilage Thyohyoid Depresses hyoid bone, elevates larynx
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Infrahyoid Muscles
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Muscles of the Body wall
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Muscles of the Thorax
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Muscles of Respiration
Name of the Muscle Action/s External intercostals Elevate ribs (Inspiration) Internal intercostals Depress ribs (Expiration) Diaphragm Chief muscle of inspiration
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Muscles of Respiration
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Abdominal Wall Muscles
Name of the Muscle Action/s Rectus abdominis Flexes vertebral column, compresses abdomen External oblique abdominis Compresses abdomen, lateral trunk rotation Internal oblique abdominis Transversus abdominis
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Abdominal Wall Muscles
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Muscles of the Posterior Thorax
Name of the Muscle Action/s Serratus anterior Pulls scapula forward and down Levator scapulae Elevates scapula Rhomboideus major and minor Adduct scapula Trapezius Moves shoulder: adducts and elevates
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Muscles of the Posterior Thorax
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Muscles of the Posterior Thorax
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Muscles of the Shoulder
Name of the Muscle Action/s Pectoralis major Flexes, adducts, and rotates arm Pectoralis minor Pulls scapula forward and down Deltoid Abducts arm
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Muscles of the Shoulder
Name of the Muscle Action/s Lattisimus dorsi Extends, adducts, and rotates arm medially Teres major Teres minor Rotates arm medially
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Muscles of the Shoulder
Deltoid
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Muscles of the Arm Name of the Muscle Action/s Biceps brachii
Flexes forearm Brachialis Brachioradialis
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Muscles of the Forearm Name of the Muscle Action/s Pronator teres
Pronates forearm Supinator Supinates forearm Triceps bracii Extends forearm
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Muscles of the Arm
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Biceps brachii Brachialis
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Supraspinatus Infraspinatus Teres minor Triceps brachii
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Muscles of the forearm Name of the Muscle Action/s
Flexor carpi radialis Flexes and abducts the wrist Flexor carpi ulnaris Flexes and adducts the wrist Flexor digitorum superficialis and profundus Flex the wrist and digits
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Muscles of the forearm Name of the Muscle Action/s
Extensor carpi radialis longus Extends wrist Extensor carpi ulnaris Extensor digitorum Extends wrist and digits
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Muscles of the Forearm
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Muscles of the Hip
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Muscles of the Gluteal Region
Name of the Muscle Action/s Gluteus maximus Extends and rotates thigh laterally Gluteus medius Abducts and rotates thigh medially Gluteus minimus Tensor fasciae latae
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Muscles of the Gluteal Region
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Adductors Name of the Muscle Action/s Adductor longus
Flexes, adducts, and rotates thigh medially Adductor brevis Flexes, adducts, and rotates thigh Adductor magnus
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Adductors
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Muscles of the Thigh
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Flexors (Hamstrings) Name of the Muscle Action/s Gracilis
Flexes leg and adducts thigh Sartorius Flexes leg and thigh, and abducts and rotates thigh Biceps femoris Flexes leg and extends and adducts thigh Semimembranosus Flexes leg and extends and adducts thigh, medially rotates thigh Semitendinosus
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Flexors (Hamstrings)
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Extensors (Quadriceps)
Name of the Muscle Action/s Rectus femoris Extend leg, and flex thigh Vastus medialis Extend leg Vastus lateralis Vastus intermedius
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Extensors (Quadriceps)
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Muscles of the Leg
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Muscles that move the foot
Name of the Muscle Action/s Gastrocnemius Planter flexes foot Soleus Peroneus longus Planter flexes and everts Peroneus brevis Peroneus tertius Dorsiflexes and everts Tibialis anterior Dorsiflexes and inverts
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Muscles that move the foot
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Muscles that move the toes
Name of the Muscle Action/s Flexor digitorum longus Flexes the toes Extensor digitorum longus Extends the toes
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Muscles that move the Toes
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Got “Movements”
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Quadriplegia due to Spinal cord injury
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Paralysis
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Myesthenia gravis
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