Name 5 major muscle in your body?
2. Quadriceps femoris. The quadriceps femoris is a group of four muscles located on the front of the thigh. They are responsible for extending the knee.
3. Hamstrings. The hamstrings are a group of three muscles located on the back of the thigh. They are responsible for flexing the knee and extending the hip.
4. Pectoralis major. The pectoralis major is a large muscle located on the front of the chest. It is responsible for flexing the shoulder joint and adducting the arm.
5. Erector spinae. The erector spinae is a group of muscles located along the spine. They are responsible for extending the spine and maintaining erect posture.