VIBS 305 Lecture Notes - Lecture 8: Stifle Joint, Biceps Femoris Muscle, Gluteal Muscles

• School: Texas A&M University
• Department: Vet Integrative Biosci
• Course: VIBS 305
• Professor: Michelle D.Pine

Document Summary

One muscle can have opposite actions at the same joint depending on whether the limb is. In humans: wide range of motion at this joint. In quadrupeds: main actions are flexion and extension. Lateral muscles of the rump (gluteal muscles: origin: lateral ilium (wing or body), sacrum, action: extend hip joint. Caudal muscles of the thigh (known as your hamstring muscles: origin: ischiatic tuberosity, actions: extend the hip joint, flex the stifle joint when the limb is not bearing weight, extend. The biceps femoris muscle is the largest muscle of the caudal thigh muscles and has three insertions. The fascia lata is where the muscle would insert on the patella and patellar ligament. The crural fascia is where the muscle would insert on the cranial border of the tibia. The common calcanean tendon is where the muscle would insert on the tuber calcanei. Cranial muscles of the thigh: the main muscle is the quadriceps femoris.