[edit] Structure Each serous membrane is composed of a secretory epithelial layer and a connective tissue layer underneath. The epithelial layer, known as mesothelium, consists of a single layer of avascular flat nucleated cells (simple squamous epithelium) which produce the lubricating serous fluid.
About MattyB. Matthew David Morris aka MattyB is a 12-year-old pop singer/rapper from Atlanta, GA. He was born on January 6, 2003. Since beginning his music career at age 7, he has quickly become an Internet superstar with more than 2 Billion video views and 5 million YouTube subscribers. His social media consists of over 8 million followers on Facebook & Twitter combined.
Taylor Hatala (foreground)Rodgers/Invision for Mattel/AP. âI immediately fell in love!â Hatala, now 12, says in the new issue of PEOPLE of discovering hip-hop dance at 6 years old. âI knew that [being onstage] was my happy place.â. For more on Taylor Hatala, pick up the new issue of PEOPLE, on newsstands now.