• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Anatomical study of arteries distributed in the renal pyramid, especially the spiral artery

Research Project

Project/Area Number 02670021
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field General anatomy (including Histology/Embryology)
Research InstitutionTHE JIKEI UNIVERSITY SCHOOL OF MEDICINE

Principal Investigator

YAMASHITA Hiroshi  JIKEI UNIVERSITY PROFESSOR SCHOOL OF MEDICINE, 医学部・医学科, 教授 (20056716)

Co-Investigator(Kenkyū-buntansha) HAYAKAWA Toshiyuki  JIKEI UNIVERSITY LECTURER SCHOOL OF MEDICINE, 医学部・医学科, 講師 (10057036)
KATO Susumu  JIKEI UNIVERSITY ASSISTANT SCHOOL OF MEDICINE PROFESSOR, 医学部・医学科, 助教授 (60056851)
Project Period (FY) 1990 – 1992
Project Status Completed (Fiscal Year 1992)
Budget Amount *help
¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 1992: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1991: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1990: ¥1,300,000 (Direct Cost: ¥1,300,000)
KeywordsSpiral artery / Softex-Angiography / Casting-Method / Renal pelvis / Reconstrucion / Double arterial sources / Softex‐Angiography / 血管樹脂剤 / 錐対体部腎乳頭 / 二重の血管支配 / 腎錐体部 / spiral artery(螺旋動脈) / 血管鋳型標本 / softex / 実体顕微鏡下剖出
Research Abstract

The title of this study is anatomical study of arteries distributed in the renal pyramid, especially the spiral artery. A total of 155 human kidneys were examined to reveal the following results :
1. Using softex angiography and casting methods, spiral arteris were found in almost all cases. They numbered 3 to 4 in unilateral kidney.
2. Spiral arteries arose from the interlobar artery, ran along the wall of renal pelvis and supplied the wall of renal calices. They formed a reticular network.
3. Three-dimensional reconstruction of paraffin sections using a light microscope showed that the spiral arteries supplied not only the wall of renal calices, but also the renal column and pyramid, especially the renal papilla. There were no anastomoses with the vasa recta, and they are considered to be an independent vessel system.
The spiral artery widely supplied the renal pelvis and the wall of renal calices as their nutrient artery. This artery arose from the interlobar artery or its branches, anastomosed with each other, and formed a vascular network. One of these branches ascended to the renal column, entered the renal pyramid, and supplied independently a part of the renal papilla. The authors assume that the spiral artery is a compensatory arterial tract. It might substitute for the vasa recta which supplies mainly the renal papilla in pathological conditions. Morphologically, we agree with Baker's theory standing "Double arterial sources of the renal papilla".
The reason for the spiral form is that they should be flexible arteries because of their wide distribution. The renal pelvis, both functionally and morphologically, should have spiral arteries in order to cope with the contraction and deformation of renal pelvis occurring in various conditions.

Report

(4 results)
  • 1992 Annual Research Report   Final Research Report Summary
  • 1991 Annual Research Report
  • 1990 Annual Research Report
  • Research Products

    (3 results)

All Other

All Publications (3 results)

  • [Publications] 山下 廣: "動脈系に関する二、三の知見" 東京慈恵会医科大学雑誌.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] "Several Findings on the Arterial System (Anatomical study of arteries distributed in the renal pyramid, especially the spiral artery)" Jikei Medical Journal.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] 山下 廣: "動脈系に関する二、三の知見" 東京慈恵会医科大学雑誌.

    • Related Report
      1992 Annual Research Report

URL: 

Published: 1990-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi