origins and insertions (Autosaved) - Muscles of Mastication Muscle Masseter Temporalis Origin Zygomatic arch Temporal fossa of the temporal bone

origins and insertions (Autosaved) - Muscles of Mastication...

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Muscles of Mastication Muscle Origin Insertion Action Masseter Zygomatic arch Mandibular angle Elevates mandible Temporalis Temporal fossa of the temporal bone Coronoid process of the mandible Elevates mandible Neck Muscle Origin Insertion Action Sternocleidomastoid Medial clavicle Mastoid process of temporal bone Flexes and rotates head Anterior, middle, posterior scalene Transverse process of Cervical vertebrae Anterior surface of ribs 1-2 Elevates rib 1-2 Intrinsic Muscles of Neck and Back Muscle Origin Insertion Action Splenius capitis Spinous process C6-T7 Occipital bone Extends vertebral column Semispinalis capitis Transverse process C7- T12 Occipital bone Extends vertebral column Iliocostalis Iliac crest Inferior border of Ribs Extends vertebral column Longissimus Transverse process C4- L5 Mastoid process of temporal bone Extends vertebral column Spinalis Spinous process L3-T7 Spinous process C4-T6 Extends vertebral column Anterior Thoracic Muscle Origin Insertion Action Pectoralis Major Sternum Lesser tubercle of the humerus Adduct arm Pectoralis Minor Ribs 3-5 Coracoid process of scapula Depresses scapula Serratus Anterior Ribs 1-8 Vertebral border of the scapula Protracts scapula External intercostals Inferior border of the ribs Superior border of the ribs Elevates rib cage Internal intercostals Superior border of the ribs Inferior border of the ribs Depresses rib cage
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Posterior Thoracic Muscle Origin Insertion Action Trapezius Occipital bone Spine of scapula Elevates scapula Levator scapula Transverse process C1- C4 Vertebral border of the scapula Elevates scapula Rhomboid major Spinous process T2-T5 Vertebral border of the scapula Adducts scapula Rhomboid minor Spinous process C7-T1 Vertebral border of the scapula Adducts scapula Latissimus dorsi Iliac crest Intertubercular groove of humerus Adducts arm Scapula Muscle Origin Insertion Action Supraspinatus Supraspinous fossa Greater tubercle of the humerus Abducts arm Infraspinatus Infraspinous fossa Greater tubercle of the humerus Rotates arm laterally Subscapularis Subscapular fossa Lesser tubercle of the humerus Rotates arm medially Teres major Inferior angle of scapula Lesser tubercle of the humerus Rotates arm medially Teres minor
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  • Fall '13
  • Human Anatomy, Muscles of the upper limb, Linea Aspera, spine of scapula, distal phalanx, Medial Epicondyle ofthe Humerus

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