Answer: Q2) Which of the following structure is derived from all - TopicsExpress



          

Answer: Q2) Which of the following structure is derived from all three germ layers? a) Hymen b) Anus c) Lips d) Tympanic membrane e) Uterus Correct Answer: d) Tympanic membrane. Uterus develops from intermediate mesoderm. Tympanic membrane forms by the joining of expanding 1st pharyngeal pouch(endoderm lined) and groove (ectoderm lined) which is separated by a thin layer of splanchnic mesoderm. Hence, the 3 layers are derived from the 3 germinal layers. 1. Outer epithelial layer: Ectoderm 2. Middle fibrous layer: Mesoderm 3. Inner mucosal layer: Endoderm
Posted on: Fri, 28 Nov 2014 03:54:52 +0000

Trending Topics



Recently Viewed Topics




© 2015