from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The beginning portion of the small intestine, starting at the lower end of the stomach and extending to the jejunum.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The first part of the small intestine, starting at the lower end of the stomach and extending to the jejunum.
from the GNU version of the Collaborative International Dictionary of English
- n. The part of the small intestines between the stomach and the jejunum. See Illust. of Digestive apparatus, under digestive.
from The Century Dictionary and Cyclopedia
- n. In anatomy, the first portion of the small intestine, in immediate connection with the stomach, receiving the hepatic and pancreatic secretions, and usually curved or folded about the pancreas.
- n. In entomology, a short smooth portion of the intestine, between the ventriculus and the ileum, found in a few coleopterous insects. Some entomotomists, however, apply this name to the ventriculus.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the part of the small intestine between the stomach and the jejunum
(If you imagine a vertical line connecting the two orifices, the duodenum sits very roughly at the midpoint; on the other hand, if you consider the actual route that food takes through the entire twisting length of the digestive system, then the duodenum is actually much closer to the mouth than to the anus.)
And, as has been pointed out by ‘mark’, the duodenum is that part of the small intestine between the stomach and the large intestine – a long way from any body openings.
[*] As I noted above, Ace’s post was ambiguous as to whether the jackhammer cock’s approach to the duodenum is per orem or per anum. anon E. mouse Says:
B biliary tree - a series of ducts that transport bile from the liver — where it's manufactured — to the small intestine (also called the duodenum), which uses bile to digest food. bile - a yellow-green liquid produced in the liver.
In the narrow space between the stomach and the duodenum is the elongated pancreas, _pan_, opening by two or more short ducts into the duodenum.
The arteries supplying the duodenum are the right gastric and superior pancreaticoduodenal branches of the hepatic, and the inferior pancreaticoduodenal branch of the superior mesenteric.
There is no coiling small intestine, but the short portion, receiving the bile duct (b.d.) and duct of the pancreas (pan.), is called the duodenum (d'dum.).
Its chief function is to absorb the peptonised fluid mass of food, or the chyle, and it is subdivided into several sections, of which the first (next to the stomach) is called the duodenum (Figure 2.349 fgh).
It is of an oblong form, and appears to be for the purpose of containing the bile, until the proper time for it to be thrown into the stomach: -- the bile is conveyed from the gall bladder into the first portion of the small intestines, called duodenum, and from thence into the stomach.
The Cherokee Physician, or Indian Guide to Health, as Given by Richard Foreman, a Cherokee Doctor; Comprising a Brief View of Anatomy, With General Rules for Preserving Health without the Use of Medicines. The Diseases of the U. States, with Their Symptoms, Causes, and Means of Prevention, are Treated on in a Satisfactory Manner. It Also Contains a Description of a Variety of Herbs and Roots, Many of which are not Explained in Any Other Book, and their Medical Virtues have Hitherto been Unknown to the Whites; To which is Added a Short Dispensatory.
Since the pancreas is so close to the small intestine, there are many ducts streaming from its head to carry the enzymes to the duodenum, which is the beginning of the intestine.