Origins, insertions and actions Flashcards
Masseter
O- lower border of zygomatic arch, I- lateral surface of mandible, A- elevates mandible
Vastus intermedius
O- anterior surface of femur, I- tibial tuberosity, A-extends leg at knee
Vastus medialis
O- medial surface of femur, I-tibial tuberosity, A-extends leg at knee
Rectus Femoris
O-anterior superior iliac spine, I- tibial tuberosity, A-extends leg at knee
Vastus Lateralis
O- greater trochanter and posterior surface of femur, I-tibial tuberosity, A-extends leg at knee
Gastrocnemius
O- lateral & medial condyles of femur, I- calcaneus tendon, A- plantar flexion
Supraspinatus
O-supraspinous fossa, I- greater tubercle, A-extends humerous
Infraspinatus
O-infraspinous fossa, I- greater tubercle, A- lateral rotation
Teres minor
O- lateral border of scapula, I- greater tubercle, A- lateral rotation
Subscapularis
O- subscapularis fossa, I-lesser tubercle, A- medial rotation
Biceps Femoris
O- Ischial tuberosity and posterior surface of femur, I- head of fibula and lateral condyle of tibia, A- flexes leg
Semitendinosis
O- ischial tuberosity, I- anterior medial surface of tibia, A - flexes leg
Psoas major
O- lumbar vertebrae, I- lesser trochanter, A- flexes thigh
Sartorius
O- anterior superior iliac spine, I- medial to tibial tuberosity, A- flexes leg and thigh
Semimembranosis
O- ischial tuberosity, I- medial condyle of tibia, A- flexes leg
Sternocleidomastoid
O- sternum and clavicle, I- mastoid process, A- pulls head side to side
Biceps brachi
O- coracoid process of scapula and superior to the glenoid cavity, I- radial tuberosity, A- flexes arm at elbow
Superficial transverse perenei
O- ischial tuberosity, I- central, tendon, A- supports pelvic viscera
Pectoralis minor
O- sternal ends of upper ribs, I- coracoid process of scapula, A- raises ribs
Levator scapulae
O- transverse process of cervicle vertebrae, I- medial margin of scapula, A- elevates scapula
Deltoid
O- spine of scapula and clavicle, I- deltoid tuberosity, A- extends humerous
Teres major
O- lateral border of scapula, I- intertubecular groove, A- extends humerous
