Smallest cross-section of large bowel is seen at:
Correct Answer: Sigmoid colon
Description: (Refer: Richard S. Snell’s Clinical Anatomy by Regions, 9th edition, pg no: 158)
Characteristic Features of Rectosigmoid Junction
The diameter of the large intestine narrows.
There is an absence of complete peritoneal investment.
There is no true mesentery.
The three taeniae coli diverge to form a continuous longitudinal muscle coat on the rectum.
There are no appendices epiploicae.
Endoscopically, an acute angle is encountered at the narrowing of the rectosigmoid and the rectal mucosa is smooth and flat, whereas the mucosa of the sigmoid forms prominent rugal folds.
Category:
Unknown
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now