Knee hug stretch is a great way to stretch the muscles around the knee. Getting down on one knee, hug your right knee with your left arm and vice versa.

Striated muscle tissue is found in the heart, lungs, and blood vessels. It functions as a pump and is made up of long bands of connective tissue called myofibrils. These bands are made up of individual cells called sarcomeres. Sarcomeres are long chains of proteins that contain myofilaments. Myofilaments are composed of actin and myosin that contract and relax to produce muscle movement.