Q. A vein possesses a large lumen because
A. Tunica Media And Tunica Externa Form A Single Coat
B. Tunica Interna And Tunica Media Form A Single Coat
C. Tunica Interna, Tunica Nicuiu And Tunica Externa Are Thin
D. Tunica Media Is A Thin Coat
Answer: Tunica Media Is A Thin Coat
