Muscle_OIA_115 - Muscle Compartment Origin Insertion Action...

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Muscle Compartment Origin Insertion Action Masseter Massication Zygomatic arch Ramus of mandible Elevates mandible Temporalis Massication Parietal bone Coranoid process of mandible Elevates mandible Platysma Superficial neck Skin of the face Depresses lower lip Sternocleidomastoid Superficial neck Mastoid process of temporal bone 1: Lateral y rotates neck 2: Flexes neck Trapezius Superficial back Superior nuchal line, ligamentum nuchae, spinous process of C7-T12 Latissimus dorsi Superficial back Spinous process of T6-T12, Lumbodorsal fascia, Iliac crest Intertubercular groove of humerus Levator scapulae Superficial back Transverse process of C1-C4 Superior angle of scapula Elevates scapula Rhomboid major Superficial back Spinous process of C7-T1 Medial border of scapula Retracts scapula Rhomboid minor Superficial back Spinous process of T2-T5 Medial border of scapula Retracts scapula Splenius capitus Deep back Extends neck Splenius cervicis Deep back Extends neck Erector spinae group Deep back Extends back Iliocostalis Deep back Extends back Longissimus Deep back Extends back Spinalis Deep back Extends back Semispinalis capitus Deep back Transverse process of C7-T6 Superior nuchal line Extends back Semispinalis cervicis Deep back Extends back Multifidus Deep back Rotates back Rotators Deep back Rotates back Pectoralis major Chest Lateral lip of intertubercular groove Flexion, extension, adduction, medial rotation of arm Pectoralis minor Chest Ribs 1-4 Coracoid process of scapula Serratus anterior Chest Ribs 1-9 Medial border of scapula Deltoid
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