Question

protein into polypeptides
Identify the correct statement with reference to
human digestive system.
(1) Serosa is the innermost layer of the
alimentary canal.
2) Ileum is a highly coiled part.
3) Vermiform appendix arises from duodenum
Ileum opens into small intestine.​

Answer 1

3) Vermiform appendix arises from duodenum

Ileum opens into small intestine.

Answer 2

The correct statement is Ileum is a highly coiled part.

Answer:

Option 2 is the right answer.

Explanation:

OPTION 1 :

• The wall of the alimentary canal has four layers namely serosa, muscularis, sub mucosa and mucosa.

• Serosa is the outermost layer of alimentary canal. It consists of thin mesothelium and some connective tissues.

• The innermost layer is mucosa. It contains majority of the glandular tissues.

OPTION 2 :

• Small intestine is divided into three parts namely duodenum, jejunum and ileum.

• Duodenum is the C shaped part arising from pyloric end of stomach.

• Duodenum is followed bt coiled part called jejunum.

• Ileum follows the jejunum and is highly coiled, so as to pave increased surface area for maximum absorption.

OPTION 3:

• Vermiform appendix arises from the first part of large intestine called caecum.

• Though vermiform appendix is considered as a vestigal organ , it has some lymphoidal tissues.

OPTION 4 :

• Ileum is the last part of small intestine.

• It furthers open into large intestine.