Origins and Insertions of Muscles Flashcards
Origin: Temporal bone Insertion: Coronoid process of mandible
Temporalis
Origin: Zygomatic arch Insertion: Coronoid process and angle of mandible
Masseter
Origin: Maxilla, palatine bone and medial surface of lateral pterygoid plate Insertion: Ramus of mandible
Medial pterygoid
Origin: Greater wing of sphenoid and lateral surface of lateral pterygoid plate Insertion: Condylar process of mandible
Lateral pterygoid
Origin: Mental protuberance, mastoid process Insertion: Hyoid bone
Digastric
Origin: Mandible Insertion: Hyoid bone
Mylohyoid
Origin: Sternum and clavicle Insertion: Mastoid process
Sternocleidomastoid
Origin: Spinous process of C3-C7 Insertion: Lateral superior nuchal line, mastoid process
Splenius Capitis
Origin: Superior nuchal line spinous processes of C7-T12 Insertion: Clavicle, acromion process, spine of scapula
Trapezius
Origin: Transverse processes of C1-C4 Insertion: Medial border and superior angle of scapula
Levator scapulae
Origin: Spinous processes of C7-T1 Insertion: Medial border of scapula
Rhomboid minor
Origin: Spinous processes of T2-T5 Insertion: Medial border of scapula
Rhomboid major
Origin: Ribs 1-8 Insertion: Medial border of scapula
Serratus anterior
Origin: Ribs 3-5 Insertion: Coracoid process of scapula
Pectoralis minor
Origin: Clavicle, acromion process, and spine of scapula Insertion: Deltoid Tuberosity
Deltoid
Origin: Coracoid process of scapula Insertion: Middle medial shaft of humerus
Coracobrachialis
Origin: Supraglenoid tubercle and coracoid process Insertion: Radial tuberosity
Biceps brachii
Origin: Infraglenoid tubercle and shaft of humerus Insertion: Olecranon process of ulna
Triceps brachii
Origin: Supraspinous fossa Insertion: Greater tubercle and shaft of humerus
Supraspinatus
Origin: Infraspinous fossa Insertion: Greater tubercle of humerus
Infraspinatus
Origin: Lateral border of scapula Insertion: Greater tubercle of humerus
Teres minor
Origin: Subscapular fossa Insertion: Lesser tubercle of humerus
Subscapularis
Origin: clavicle, sternum, ribs 2-6 Insertion: intertubercular groove
Pectoralis Major
Origin: lateral border and inferior angle of scapula Insertion: intertubercular groove
Teres Major
Origin: spinous processes T7-T12, ribs 8-12, iliac crest, thoracolumbar fascia Insertion: Intertubercular groove
Latissimus Dorsi
Origin: anterior shaft of humerus Insertion: coronoid process of ulna
Brachialis
Origin: Lateral supracondylar ridge of humerus Insertion: styloid process of radius
Brachioradialis
Origin: lateral epicondyle of humerus and supinator crest Insertion: lateral surface of radius
Supinator
Origin: medial epicondyle of humerus and coronoid process of ulna Insertion: lateral surface of radius
Pronator Teres
Origin: anterior inferior iliac spine Insertion: tibial tuberosity
Rectus Femoris
Origin: greater trochanter and linea aspera Insertion: tibial tuberosity
Vastus Lateralis
Origin: shaft of femur Insertion: tibial tuberosity
Vastus intermedius
Origin: intertrochanteric line and linea aspera Insertion: tibial tuberosity
Vastus Medialis
Origin: anterior superior iliac spine Insertion: pes anserinus
Sartorius
Origin: Transverse processes and bodies of T12-L5 Insertion: Lesser trochanter
Psoas Major
Origin: Iliac fossa Insertion: lesser trochanter
Iliacus
Origin: superior ramus of pubis Insertion: lesser trochanter
Pectineus
Origin: inferior ramus and body of pubis Insertion: pes anserinus
Gracilis
Origin: superior ramus of pubis Insertion: linea aspera
Adductor Longus
Origin: inferior ramus of pubis Insertion: linea aspera
Adductor brevis
Origin: inferior ramus of pubis, ramus of ischium, ischial tuberosity Insertion: linea aspera
Adductor magnus
Origin: Ischial tuberosity and linea apsera Insertion: head of fibula
Biceps femoris