Q. Which is the correct sequence of 4 layers of alimentary canal from periphery to centre?
A) Muscularis $\rightarrow$ Serosa $\rightarrow$ Mucosa $\rightarrow$ Submucosa
B) Serosa $\rightarrow$ Mucosa $\rightarrow$ Muscularis $\rightarrow$ Submucosa
C) Serosa $\rightarrow$ Muscularis $\rightarrow$ Submucosa $\rightarrow$ Mucosa
D) Serosa $\rightarrow$ Mucosa $\rightarrow$ Submucosa $\rightarrow$ Muscularis
Explanation
The wall of human gut consists of four basic layers. From periphery (outer) to centre (towards the lumen) they are, serosa or visceral peritonium $\rightarrow$ muscularis or muscular coat $\rightarrow$ submucosa $\rightarrow$ mucous membrane or mucosa
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.