  The bodily system that consists of the bones, their associated cartilages, and the joints, and supports and protects the body, produces blood cells, and stores minerals â¦ . IT IS BONES IN YOUR BODY TOGETHER MAKE THE SKELETAL SYSTEM.
The wakizashi is the sidearm of the Samurai. Basically it is a short katana with a shorter blade and handle. The wakizashi when worn together with a katana was an official sign of being a Samurai.
Kuzushi is one of the major differences between Judo and the foundational Jujutsu arts from which Judo developed. The expertise that you develop with Kuzushi will largely determine the expertise with which your waza can overcome your opponents. This is a topic that you should constantly spend your training time on.