Origins of Muscles Lab Final

Splenius Capitus Origin

Spinous process C7-T3

Sternocleidomastoid Origin

Sternum and clavicle

Pectoralis major Origin

Sternum and clavicle

Deltoid Origin

Clavicle, acromion and spine of scapula

Infraspinatus Origin

Scapula - infraspinous fossa

Supraspinatus Origin

Scapula - supraspinous fossa

Subscapularis Origin

Anterior surface of scapula

Teres minor Origin

scapula - lateral border

Rectus Abdominus Origin

Sternum and ribs 5-7

External oblique Origin

Ribs 5-12

Internal oblique Origin

Iliac crest

Trapezius Origin

Occipital bone; Spinous processes C7-T12

Latissimus dorsi Origin

Spinous processes T7-12; Ribs 8-12; Iliac crest

Psoas Major Origin

Transverse processes and bodies of T12-L5 vertebrae

Biceps brachii Origin

Scapula

Brachialis Origin

Humerus

Triceps Brachii Origin

Scapula, posterior of humerus

Brachioradialis Origin

Humerus

Gluteus maximus Origin

Iliac crest, sacrum, coccyx

Gluteus medius Origin

Posterior iliac crest

Sartorius Origin

ASIS (Anterior superior iliac spine)

Rectus femoris Origin

Anterior inferior iliac spine

Vastus lateralis Origin

greater trochanter and linea aspera of femur

vastus medialis Origin

Intertrochanteric line and linea aspera of femur

Vastus intermedius Origin

Anterolateral surface of femur

Tensor fascia lata Origin

iliac crest and ASIS

Biceps femoris Origin

Ischial tuberosity, Linea aspera of femur

Semimembranosis Origin

Ischial tuberosity

Semitendonosis Origin

Ischial tuberosity

Gastrocnemius Origin

Lateral and medial condyles of femur

Soleus Origin

Fibula and tibia

Iliacus Origin

Iliac fossa

Tibialis anterior Origin

lateral condyle of tibia