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List of Muscles and Function Region Facial View Anterior/Oblique Muscle Occipitofrontalis front belly Orbicularis oculi Orbicularis oris Zygomaticus minor/major Buccinator Depressor anguli oris Function Raises eyebrows Closes eye Purses lips Elevates & retracts lip and mouth Compresses cheeks Depress corner of mouth Facial Lateral Masseter Elevate mandible/close jaw Principle masticator Elevates jaw Principle masticator Temporalis Neck Anterior Platysma Sternocleidomastoid Anterior Omohyoid Depress mandible, tense neck Flex neck together Rotate head to opposite side alone Depress hyoid & larynx Sternohyoid Depress hyoid & larynx Rectus abdominis External oblique Internal oblique Transversus abdominis Diaphragm Vertebral flexion/compression Vertebral flexion/rotation/comp Vertebral flexion/rotation/comp Compress abdomen Quiet respiration Trapezius Serratus anterior Rhomboid major/minor Pectoralis minor Elev/depress/adduct/up.rotation Abduction, upward rotation Adduction, downward rotation Abduction, downward rotation deep section Abdomen Anterior deep section deep section deep section Shoulder Girdle Posterior Anterior deep section Shoulder Joint Posterior Anterior ribs removed Anterior Post/Lat/Ant Elbow Joint Anterior Posterior Latissimus dorsi Adduct, inward rotation, extension Teres major Adduct, inward rotation, extension *Supraspinatus Abduction and stabilization *Infraspinatus Adduction, outward rotation *Teres minor Adduction, outward rotation *Subscapularis Adduction, inward rotation *Above four comprise the Rotator Cuff Pectoralis major Flexion, inward rotation, Coracobrachialis Adduction, flexion Biceps brachii Flexion Triceps brachii long head Extension Deltoid all fibers Abduct, ant. fibers in.rot/flex post. fibers outrot/flex Biceps brachii Brachialis Brachioradialis Triceps brachii Flexion, supination of hand Flexion Flexion. Pro/supination to midpos. Extension Region View Wrist & Hand Anterior Posterior Hip Joint Anterior deep section Medial Posterior Lateral Knee Joint Anterior deep section Posterior Ankle Joint Anterior Lateral Posterior Muscle Long Flexors Flexor carpi radialis Palmaris longus Flexor carpi ulnaris Long Extensors Extensor carpi radialis long. Extensor digitorum Extensor carpi ulnaris Iliopsoas Iliacus Psoas major Quadriceps femoris Rectus femoris only Sartorius Gracilis Pectineus Adductor longus Gluteus maximus Hamstrings Semitendinosus Semimembranosus Biceps femoris long head Tensor fasciae latae Iliotibial tract Gluteus medius Quadriceps femoris Rectus femoris Vastus lateralis Vastus medialis Vastus intermedius Hamstrings Semitendinosus Semimembranosus Biceps femoris both heads Sartorius Gracilis Gastrocmenius Tibialis anterior Fibularis longus Gastrocnemius Soleus Function Flexion of wrist and hand Flexion of wrist and hand Flexion of wrist and hand Extension of wrist and hand Extension of wrist and hand Extension of wrist and hand Flexion, outward rotation Flexion, outward rotation Flexion Flexion, outward rotation Adduction Flexion, adduction Adduction, flexion Extension, lateral rotation Extension Extension Extension Flexion, stabilizes knee Abduction Extension Extension Extension Extension Flexion Flexion Flexion Flexion Flexion Flexion Dorsiflexion Eversion Plantarflexion Plantarflexion Be able to identify all of the above muscles on charts and models Be able to identify actions for all of the above muscles Be able to also list the attachments (origin and insertion) for Bolded Muscles Attachments are listed in the Lecture Notes