Ascending colon

Ascending colon

Drawing of colon seen from front
(ascending colon coloured blue)

Front of abdomen, showing surface markings for liver, stomach and large intestine
Details
Precursor Midgut
Artery Right colic artery
Vein Right colic vein
Nerve Celiac ganglia, vagus[1]
Identifiers
Latin Colon ascendens
TA A05.7.03.002
FMA 14545

Anatomical terminology

The ascending colon is the part of the colon located between the cecum and the transverse colon.

The ascending colon is smaller in caliber than the cecum from where it starts. It passes upward, opposite the colic valve, to the under surface of the right lobe of the liver, on the right of the gall-bladder, where it is lodged in a shallow depression, the colic impression; here it bends abruptly forward and to the left, forming the right colic flexure (hepatic) where it becomes the transverse colon.

It is retained in contact with the posterior wall of the abdomen by the peritoneum, which covers its anterior surface and sides, its posterior surface being connected by loose areolar tissue with the iliacus, quadratus lumborum, aponeurotic origin of transversus abdominis, and with the front of the lower and lateral part of the right kidney.

Sometimes the peritoneum completely invests it, and forms a distinct but narrow mesocolon.

It is in relation, in front, with the convolutions of the ileum and the abdominal walls.

Parasympathetic innervation to the ascending colon is supplied by the vagus nerve. Sympathetic innervation is supplied by the thoracic splanchnic nerves.

Additional images

See also

References

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

  1. ↑ Physiology: 6/6ch2/s6ch2_30 - Essentials of Human Physiology

External links

This article is issued from Wikipedia - version of the 6/29/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.