[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.
Tons of popstars find their groove in their 20s â lookinâ at you, Selena G â but what about the singers who caught EVERYONEâS eye as a teen? Hereâs who released amazing albums at age 16 and younger. Justin Bieber famously received a Range Rover from Usher for his 16th birthday, but it was a while before he was able to drive it. JB didnât mind though, because heâd already dropped his EP, My World, plus a little song called âOne Time.â