Teacher Suzy sings about muscles. The song mentions that muscles are everywhere throughout our body, and each muscle serves a purpose. The video provides an illustration of the muscular system and explains some common actions that muscles help us perform, such as smiling.
Hank introduces connective tissue and explains where it is found in the body. He outlines four major classes of connective tissue and the role they play in the body: Proper, Cartilage, Bone, and Blood.