lesser curvature

WordNet

1. comparative of little; "she walks less than she should"; "he works less these days"
2. used to form the comparative of some adjectives and adverbs; "less interesting"; "less expensive"; "less quickly" (同)to a lesser extent
3. (comparative of `little usually used with mass nouns) a quantifier meaning not as great in amount or degree; "of less importance"; "less time to spend with the family"; "a shower uses less water"; "less than three years old"
4. (nonstandard in some uses but often idiomatic with measure phrases) fewer; "less than three weeks"; "no less than 50 people attended"; "in 25 words or less"
5. (usually preceded by `no'
6. (medicine) a curving or bending; often abnormal; "curvature of the spine"
7. the property possessed by the curving of a line or surface (同)curve
8. the rate of change (at a point) of the angle between a curve and a tangent to the curve
9. smaller in size or amount or value; "the lesser powers of Europe"; "the lesser anteater"
10. of less size or importance; "the lesser anteater"; "the lesser of two evils"

PrepTutorEJDIC

1. (量が)(…より)『もっと少ない』,いっそう少ない;(大きさ・価値・程度などが)(…より)『もっと少ない』,さらに劣る,もっと低い《+『than』…》 / もっと少なく,…ほどでなく《+『than…』》 / 《形容詞・副詞の劣勢の意の比較級を作るのに用いて》…ほど…でない《+『than…』》 / さらに少ない数(量) / …だけ足りない,を引いた
2. 湾曲;湾曲部
3. 『いっそう小さい(少ない,重要でない)』,より劣った

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2013/12/09 20:55:46」(JST)

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Greater curvature of the stomach
Outline of stomach, showing its anatomical landmarks.
Diagram from cancer.gov Archived 31 December 2006 at the Wayback Machine: * 1. Body of stomach 2. Fundus 3. Anterior wall 4. Greater curvature 5. Lesser curvature 6. Cardia 9. Pyloric sphincter 10. Pyloric antrum 11. Pyloric canal 12. Angular notch 13. Gastric canal 14. Rugal folds Work of the United States Government
Latin	curvatura major gastris, curvatura minor gastris
Gray's	subject #247 1162
Artery	Greater: short gastric (upper part), left gastroepiploic (middle) Lesser: Right gastric artery and left gastric artery
Vein	Lesser: Right gastric vein and left gastric vein

The curvatures of the stomach refer to the greater and lesser curvatures. The greater curvature of the stomach is four or five times as long as the lesser curvature.

Greater curvature

Surface

Starting from the cardiac orifice at the incisura cardiaca, it forms an arch backward, upward, and to the left; the highest point of the convexity is on a level with the sixth left costal cartilage.

From this level it may be followed downward and forward, with a slight convexity to the left as low as the cartilage of the ninth rib; it then turns to the right, to the end of the pylorus.

Directly opposite the incisura angularis of the lesser curvature the greater curvature presents a dilatation, which is the left extremity of the pyloric part; this dilatation is limited on the right by a slight groove, the sulcus intermedius, which is about 2.5 cm, from the duodenopyloric constriction.

The portion between the sulcus intermedius and the duodenopyloric constriction is termed the pyloric antrum.

At its commencement the greater curvature is covered by peritoneum continuous with that covering the front of the organ.

The left part of the curvature gives attachment to the gastrolienal ligament, while to its anterior portion are attached the two layers of the greater omentum, separated from each other by the gastroepiploic vessels.

Blood supply

There are three arteries which primarily supply the greater curvature:

• short gastric arteries - upper part

and the gastroepiploic vessels:

• gastric branches of left gastro-omental artery - middle part
• gastric branches of right gastro-omental artery - lower part

Lesser curvature

The lesser curvature of the stomach, extending between the cardiac and pyloric orifices, forms the right or posterior border of the stomach.

Structure

It descends as a continuation of the right margin of the esophagus in front of the fibers of the right crus of the diaphragm, and then, turning to the right, it crosses the first lumbar vertebra and ends at the pylorus.

Nearer its pyloric than its cardiac end is a well-marked notch, the incisura angularis, which varies somewhat in position with the state of distension of the viscus; it serves to separate the stomach into a right and a left portion.

The lesser curvature gives attachment to the two layers of the hepatogastric ligament, and between these two layers are the left gastric artery and the right gastric branch of the hepatic artery.

Additional images

• Interior of the stomach.

• Lesser curvature

• Interior of the stomach.

• Regions of the stomach.

• Greater curvature

See also

This article uses anatomical terminology, for an overview see anatomical terminology.

External links

• greater+curvature+of+stomach at eMedicine Dictionary
• stomach at The Anatomy Lesson by Wesley Norman (Georgetown University)
• celiactrunk at The Anatomy Lesson by Wesley Norman (Georgetown University)
• Roche Lexicon - illustrated navigator, at Elsevier 23314.000-1

References

This article incorporates text from a public domain edition of Gray's Anatomy.

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関連記事	「curvature」「less」

「curvature」

　　[★]

• n.

• 弯曲、彎曲、屈曲、曲率

関

arcuation、bend、bending、curling、flex、flexion、flexural、inflection、twist

　 　 　 　

「less」

　　[★]

• adv

• 少ない