Matching Pairs HUMAN BIOLOGYOnline version LINK NAME AND DEFINITION by Guy Kruse 1 epithelial tissue 2 nervous tissue 3 hormone 4 cells 5 organ 6 connective tissue 7 organ system 8 cardiovascular system 9 muscle tissue 10 tissue Structure made of two or more tissues that work together. A chemical messenger molecule. Bands of cells that contract and allow movement. Group of similar cells working together. Group of nerve cells that sense stimuli and transmit signals; found in brain, spinal cord, and nerves. Group of cells that are all involved in supporting and binding other tissues of the body; i.e. tendon, cartilage, bone, and blood. Basic unit of structure and function of a living organism; the basic unit of life. Layers of tightly packed cells that line the surfaces of the body. Organs that work together to serve a common purpose. Organ system made up of the heart, blood, and blood vessels.