Question

Name the tissue found at the lining of food pipe

Answer 1

The wall of alimentary canal from oesophagus to rectum possess four layers these are :-

• Serosa - It is the outermost layer and is made up of mesothelium with connective tissues.
• Muscularis - It is arranged in an inner circular and outer longitudinal layer formed by smooth muscles.
• Submucosa - This layer is formed of loose connective tissues and it forms the lining of the food pipe.
• Mucosa - The innermost layer lining the lumen forms irregular folds in the stomach and small finger like folding called villi in the small intestine.