MUSCLES: HIND LIMB NO.1

MUSCLES: HIND LIMB NO.1

1. BICEPS FEMORIS

   • 1/3 muscles which make up the hamstring.
   • O: SACROILIAC REGION
   • I: DISTAL FEMUR, TIBIAL CREST & ACHILLES TENDON
   • A: EXTENDS THE HIP & FLEXES STIFLE

2. QUADRICEPS

   • Main muscle mass on the thigh are overlain by the tensor fascia lata.
   • O: THE ILIUM & HEAD OF FEMUR
   • A: EXTENDS THE STIFLE
   • I: VIA PATELLA & PATELLA LIGAMENT
   • MADE OF FOUR MUSCLES:
     • RECTUS FEMORIS
     • VASTUS LATERALIS
     • VASTUS INTERMEDIUS
     • VASTUS MEDIALIS

3. KEY:

4. 'O': ORIGIN

5. 'I': INSERTION

6. 'A': ACTION

7. SEMIMEMBRANOSUS

   • O: ISCHIUM
   • I: DISTAL FEMUR & PROXIMAL TIBIA
   • A: EXTENDS LIMB BACKWARDS

8. SEMITENDINOSUS

   • O: ISCHIUM
   • I: TIBIAL CREST & ACHILLES TENDON
   • A: STIFLE FLEXOR

9. GLUTEALS

   • MADE FROM 3 MUSCLES
     • SUPERFICIAL GLUTEAL
     • MIDDLE GLUTEAL
     • DEEP GLUTEAL
   • O: ILIUM & SACRUM
   • I: GREATER TROCHANTER OF FEMUR
   • A: HIP EXTENSORS & ABDUCT THE HIP WHEN STANDING
     • Abduct hip= cocking the leg