Vasa recta (intestines)
Encyclopedia
For the kidney structure, see vasa recta
Vasa recta are straight arteries coming off from arcades
in the mesentery
of the jejunum
and ileum
, and heading toward the intestines.
The arcades are anastomoses of the jejunal and ileal arteries, branches of superior mesenteric artery
.
When comparing the vasa recta of the jejunum and the ileum, that of the former are long and few while the vasa recta in the latter are short and many.
Vasa recta
In the blood supply of the kidney, the vasa recta renis form a series of straight capillaries in the medulla...
Vasa recta are straight arteries coming off from arcades
Arterial arcades
Arterial arcades are loops of arteries around the jejunum and ileum.Nearest the duodenum the mesenteric loops are primary, the vasa recta are long and regular in distribution, and the translucent spaces are extensive....
in the mesentery
Mesentery
In anatomy, the mesentery is the double layer of peritoneum that suspends the jejunum and ileum from the posterior wall of the abdomen. Its meaning, however, is frequently extended to include double layers of peritoneum connecting various components of the abdominal cavity.-Mesentery :The...
of the jejunum
Jejunum
The jejunum is the middle section of the small intestine in most higher vertebrates, including mammals, reptiles, and birds. In fish, the divisions of the small intestine are not as clear and the terms middle intestine or mid-gut may be used instead of jejunum.The jejunum lies between the duodenum...
and ileum
Ileum
The ileum is the final section of the small intestine in most higher vertebrates, including mammals, reptiles, and birds. In fish, the divisions of the small intestine are not as clear and the terms posterior intestine or distal intestine may be used instead of ileum.The ileum follows the duodenum...
, and heading toward the intestines.
The arcades are anastomoses of the jejunal and ileal arteries, branches of superior mesenteric artery
Superior mesenteric artery
In human anatomy, the superior mesenteric artery arises from the anterior surface of the abdominal aorta, just inferior to the origin of the celiac trunk, and supplies the intestine from the lower part of the duodenum through two-thirds of the transverse colon, as well as the pancreas.-Location...
.
When comparing the vasa recta of the jejunum and the ileum, that of the former are long and few while the vasa recta in the latter are short and many.