Proper/Mature CT - 1 Loose - Joins skin to muscles - rich in blood vessels and nerves - 2 Dense regular - Tendons and ligaments - collagen fibers run parallel to direction of force - 3 Dense irregular - skin, bones, joints and heart valves - interwoven collagen fibers can resist tension from and direction - 4 Elastic - Found in walls of arteries, trachea and bronchioles - very elastic - 5 Reticular - Supporting framework of liver, spleen, lymph and blood vessels - forms stroma that binds and supports tissues and organs - 6 Adipose - Found around kidneys, heart, skin, joints etc - stores fat in cytoplasm and pushed nucleus to side of cell - insulates, protects and acts and energy store