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  2. Curvatures of the stomach - Wikipedia

    en.wikipedia.org/wiki/Curvatures_of_the_stomach

    The greater curvature of the stomach forms the lower left or lateral border of the stomach. [3] Starting from the cardiac orifice it begins at the cardiac notch, forming an arch backward, upward, and to the left. A horizontal plane across from the cardiac notch encloses an area called the fundus of the stomach.

  3. Lordosis - Wikipedia

    en.wikipedia.org/wiki/Lordosis

    Lordosis is historically defined as an abnormal inward curvature of the lumbar spine. [1] [2] However, the terms lordosis and lordotic are also used to refer to the normal inward curvature of the lumbar and cervical regions of the human spine. [3] [4] Similarly, kyphosis historically refers to abnormal convex curvature of the spine

  4. Convex curve - Wikipedia

    en.wikipedia.org/wiki/Convex_curve

    The total absolute curvature of a smooth convex curve, | |, is at most . It is exactly for closed convex curves, equalling the total curvature of these curves, and of any simple closed curve. For convex curves, the equality of total absolute curvature and total curvature follows from the fact that the curvature has a consistent sign.

  5. Abdominal aorta - Wikipedia

    en.wikipedia.org/wiki/Abdominal_aorta

    The abdominal aorta begins at the level of the diaphragm, crossing it via the aortic hiatus, technically behind the diaphragm, at the vertebral level of T12. [1] It travels down the posterior wall of the abdomen, anterior to the vertebral column. It thus follows the curvature of the lumbar vertebrae, that is, convex anteriorly.

  6. Greater omentum - Wikipedia

    en.wikipedia.org/wiki/Greater_omentum

    It extends from the greater curvature of the stomach, passing in front of the small intestines and doubles back to ascend to the transverse colon before reaching to the posterior abdominal wall. The greater omentum is larger than the lesser omentum , which hangs down from the liver to the lesser curvature .

  7. Colic flexures - Wikipedia

    en.wikipedia.org/wiki/Colic_flexures

    The left colic flexure or splenic flexure (as it is close to the spleen) is the sharp bend between the transverse colon and the descending colon.The splenic flexure receives dual blood supply from the terminal branches of the superior mesenteric artery and the inferior mesenteric artery.

  8. Insect morphology - Wikipedia

    en.wikipedia.org/wiki/Insect_morphology

    Thus, the costa and subcosta are regarded as convex and concave branches of a primary first vein, Rs is the concave branch of the radius, posterior media is the concave branch of the media, Cu1 and Cu2 are respectively convex and concave, while the primitive postcubitus and the first vannal have each an anterior convex branch and a posterior ...

  9. Four-vertex theorem - Wikipedia

    en.wikipedia.org/wiki/Four-vertex_theorem

    The four-vertex theorem was first proved for convex curves (i.e. curves with strictly positive curvature) in 1909 by Syamadas Mukhopadhyaya. [8] His proof utilizes the fact that a point on the curve is an extremum of the curvature function if and only if the osculating circle at that point has fourth-order contact with the curve; in general the osculating circle has only third-order contact ...