Bluegrass seed require firm soil contact for best germination. They also need a thin soil covering to germinate (1/4 inch ideal) - They are not likely to germinate when thrown out on top of the ground, unless a mulch covering or top soil is applied. Use the correct rate of seed for Bluegrass lawns.
Hip muscles. Lunges work all of the gluteal muscles in the hips, primarily the gluteus maximus that is used to extend your hips. Taking large steps during a lunge can further engage this muscle. The gluteus minimus and gluteus medius are also used to stabilize your body throughout the lunge. Thigh muscles.
The muscular system is interesting. In the human body there are three types of muscle tissue: Skeletal muscle, smooth muscle, and cardiac muscle. The muscular system helps push air come into and leave the respiratory system through the contraction and relaxation of the diaphragm, which is a muscle. The respiratory system has the lungs that deliver air to the muscles.