Superior mesenteric lymph nodes
Encyclopedia
The superior mesenteric lymph nodes may be divided into three principal groups:
, ileum
, cecum
, vermiform process, and the ascending and transverse parts of the colon; their efferents pass to the preaortic glands.
- mesenteric lymph nodesMesenteric lymph nodesThe mesenteric lymph nodes lie between the layers of the mesentery.They vary from one hundred to one hundred and fifty in number, and may be grouped into three sets, viz.:...
- ileocolic lymph nodesIleocolic lymph nodesThe ileocolic lymph nodes, from ten to twenty in number, form a chain around the ileocolic artery, but show a tendency to subdivision into two groups, one near the duodenum and another on the lower part of the trunk of the artery...
- mesocolic lymph nodesMesocolic lymph nodesThe mesocolic lymph nodes are numerous, and lie between the layers of the transverse mesocolon, in close relation to the transverse colon; they are best developed in the neighborhood of the right and left colic flexures....
Afferents
The superior mesenteric glands receive afferents from the jejunumJejunum
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...
, 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...
, cecum
Cecum
The cecum or caecum is a pouch, connecting the ileum with the ascending colon of the large intestine. It is separated from the ileum by the ileocecal valve or Bauhin's valve, and is considered to be the beginning of the large intestine. It is also separated from the colon by the cecocolic...
, vermiform process, and the ascending and transverse parts of the colon; their efferents pass to the preaortic glands.