OBSERVATION OF BLOOD SUPPLY OF METATARSUSES AND PHALANGEALS IN FETUSES AND INFANTS
- VernacularTitle:胎儿和幼儿跖趾骨血液供应的观察
- Author:
Zhigang CHEN
;
Qi GUO
;
Qinghua MA
- Publication Type:Journal Article
- Keywords:
metatarsus;
phalangeal;
blood supply;
fetus;
infant
- From:
Journal of Xi'an Jiaotong University(Medical Sciences)
1981;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
The blood supply of metatarsuses and pha-langeals in 30 cases of fetuses and infants was ob-served by microangiographic methods. The resultsdemonstrated that diaphyses and cartilages of bothends of metatarsuses and phalangeals gradually in-creased in the fetal period and appeared nourishingartery and cartilage canal. Both ends of metatar-suses and phalangeals gradually decrea.ed in the. infant period and cartilage canals gradually disap-peared also. These implied that the appearance ofcartilage canals was related to the size of cartilageblocks. Cartilage Canals were temporary bloodsystem of fetal cartilage. Characteristics of bloodsupply of metatarsuses and phalangeals: 1. Asym-metrical distribution of blood supply on metatar-suses and phalangeal, that is the blood supply ofepiphyseal end is richer than one of non--epiphy-seal end, is adapted with the difference of growthability at both ends. 2. There is distribution ofcartilage canals at the epiphyseal end of the distalphalanx, and it is adapted with having growth a-bility at the proximal end. These show that bloodsupply of metatarsuses and phalangeals is closelyrelated to their growth and development.
