Meckel's diverticulum is a remnant of the vitelline duct, which normally connects the yolk sac to the embryo. In some cases, the proximal end of this duct persists after birth as Meckel's diverticulum. It is a true diverticulum located on the antimesenteric border of the ileum about 2 feet from the ileocecal valve. It can cause intestinal obstruction, inflammation resembling appendicitis, or involvement in other diseases due to its possible gastric or pancreatic tissue contents.

1. Meckel's Diverticulum
Diverticulum Ilei

2. It is proximal part of Vitellointestinal duct
It is a proximal part of Vitellointestinal duct

3. Vitellointestinal
Duct
In early stage of development, source of nutrition for embryo
is yolk sac
|
So there is connection between yolk sac and embryo which is
called
Vitellointestinal duct

4. What is meckel's
diverticulum
During 6 __7 wk of gestation, source of nutrition become placenta
| so
Vitellointestinal duct gets obliterated regresses
But
In few cases proximal part of Vitellointestinal duct
persists is called meckel's diverticulum

9. Features
of
meckel's diverticulum
1__Occurs in2℅population
2__2times morecommoninmales
3__2inches long
4__situatedabout 2feet or 60CMproximal
toIlieocaecalvalve
5__ 2types of tissues may bepresent init
__gastrictissues
__ pancreatictissues
6__caliber ( internaldiameter) is equal tothat of ileum
7__its apex may befreeor may beattachedtoany abdominalstructureby fibrous band

10. Applied anatomy
1_meckels diverticulum may causes intestinal obstruction
2__ acute inflamation of diverticulum may produce symptoms
that resemble of appendicitis
3__it may be involved in other disease
4__ it may have to 2 types of tissues
Gastric tissues
Pancreatic tissues