Microvascular changes during the development of follicles in bovine ovaries: a study of corrosion casts by scanning electron microscopy.
Microvascular changes during the development of follicles in bovine ovaries: a study of corrosion casts by scanning electron microscopy.
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牛卵巢卵泡发育过程中的微血管变化：扫描电子显微镜对腐蚀管型的研究。
DOI：
10.1679/aohc.58.567
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发表时间：
1995
影响因子：
--
通讯作者：
T. Hiratsuka
中科院分区：
文献类型：
--
作者：
O. Yamada;Mitsuo Abe;Kazushige Takehana;Takeo Hiraga;Kenji Iwasa;T. Hiratsuka
用扫描电镜观察了牛卵巢腐蚀铸型中卵泡发育过程中微血管的变化。次级卵泡直径200-400 μ m时，卵泡血管丛清晰。血管丛最初由一个薄的、结构粗糙的单层毛细血管网组成。在卵泡发育过程中，窦状卵泡的微血管构筑呈两个独立的血管丛排列。内丛，其中收到一个螺旋状的小动脉，由一个密集的窦状毛细血管网络的动脉和静脉层，它作为一个独立的微循环单元。内丛起源于次级卵泡内膜的毛细血管丛。外丛由细而粗的篮状毛细血管丛组成，由间质毛细血管包围。外丛由间质毛细血管丛形成，是发育中的窦状卵泡迅速扩大的结果。
Microvascular changes during the development of follicles in bovine ovaries were studied by scanning electron microscopy of corrosion casts. A clear vascular plexus of ovarian follicles appeared at the stage when secondary follicles were 200-400 microns in diameter. The plexus consisted initially of a thin, roughly structured and single-layered capillary network. During follicular development, the microvascular architecture of antral follicles was arranged as two independent vascular plexuses. The inner plexus, which received a spiral arteriole, consisted of a dense sinusoidal capillary network with an arterial and a venous layer; it functioned as an independent microcirculatory unit. The inner plexus developed from the capillary plexus of the theca interna of the secondary follicles. The outer plexus, which anastomosed with several stromal capillaries, consisted of a thin, coarse and basket-like capillary plexus. The outer plexus was formed from the stromal capillary plexus as a consequence of the rapid enlargement of developing antral follicles.