Go To Your Study Dashboard

Get Answers to all your Questions

header-bg

Choose the incorrect statement

Option: 1
The circular folds are more in jejunum and less in ileum

Option: 2
Circular folds facilitate absorption.

Option: 3
There are about 20 to 40 villi per square millimeter of mucosa

Option: 4
Each villus contains a capillary bed composed of one arteriole and one venule, as well as a lymphatic capillary

Answers (1)

Circular Folds:

These are also called folds of Kerckring or plica circulare.
These are deep ridges in the mucosa and submucosa.
They begin near the proximal part of the duodenum and end near the middle of the ileum.
These folds facilitate absorption.
Their shape causes the chyme to spiral, rather than move in a straight line, through the small intestine.
Spiraling slows the movement of chyme and provides the time needed for nutrients to be fully absorbed.

Villi:

These are present within the circular folds.
These are hairlike vascularized projections that give the mucosa a furry texture.
There are about 20 to 40 villi per square millimetre, increasing the surface area of the epithelium tremendously.
In addition to muscle and connective tissue to support its structure, each villus contains a capillary bed composed of one arteriole and one venule, as well as a lymphatic capillary called a lacteal.

The circular folds and villi decrease in jejunum, but increase in ileum. Hence, the correct answer is option a.

Posted by

Sumit Saini

View full answer

NEET 2024 Most scoring concepts

Just Study 32% of the NEET syllabus and Score up to 100% marks

Similar Questions

Trending Articles/News

anam-khan

Centre forms committee to tackle coaching dependency, dummy schools, examine JEE, NEET pressure

anam-khan

BSc Nursing NEET cut-offs for AIQ seats, central universities; counselling process, fee details

anam-khan

NEET cut-off trends for MBBS in Tamil Nadu government, private medical colleges; counselling underway

Latest Question