Strongest Layer of Intestine MCQ - Surgery Exam Preparation
Q) Which is the strongest layer of the intestine?
a) Mucosa
b) Submucosa
c) Muscularis propria
d) Muscularis mucosa
Answer:
b) Submucosa is the strongest and most important layer for intestinal anastomosis. It has fibroblasts that will ultimately release collagen and hold the anastomosis together. This layer should be fully incorporated in the anastomosis.
Inverted vs everted anastomosis of intestine debate has been long going on, but now many prefer inverted because mucosa is exposed to mucosa and eventually degrades, joining the two submucosa layers together to cause healing by primary intention.
Q) A 24 year old male suffers low velocity gun shot wound in lower abdomen. On exploration there is a 1 cm segment loss of left ureter above the pelvic brim. Best management is :
Q) A 45 year old man who has been drinking regularly for the past 15 years vomits after a large meal and complains of severe chest pain. Cardiac cause is ruled out and boerhavve's syndrome is suspected. Which of the following is not true about this condition
a) Gastrograffin tests will confirm the diagnosis
b) Perforation is most common in the left lower end
c) Exploration and full thickness suturing of perforation should be done
d) This condition has a high morbidity and mortality if not diagnosed at time