-
- NINOMIYA Hiroyoshi
- Department of Laboratory Animal Science, Azabu University
-
- INOMATA Tomo
- Department of Laboratory Animal Science, Azabu University
-
- KANEMAKI Nobuyuki
- Department of Veterinary Internal Medicine III, Azabu University
書誌事項
- タイトル別名
-
- Microvascular Architecture of the Rabbit Eye: A Scanning Electron Microscopic Study of Vascular Corrosion Casts
- Laboratory animal science: Microvascular architecture of the rabbit eye: a scanning electron microscopic study of vascular corrosion casts
この論文をさがす
抄録
The microvasculature of the eyes of 5 rabbits was investigated using scanning electron microscopy on corrosion casts. The study revealed that the pars plana vessels draining blood from the iris and ciliary body coursed directly into the anterior vortex venous system constituting the scleral venous plexus (the venous circle of Hovius). The episcleral vasculature was found to possess a specialized morphology, with channels draining the aqueous humor. The capillaries of the third palpebral, bulbar and palpebral conjunctiva formed a single-layered capillary network approximately parallel to the epithelium and formed a well-developed venous plexus in the stroma. The retina was found to be merangiotic, meaning that vessels were present only in a small part of the retina, extending in a horizontal direction to form bands on either side of the optic disc. Channels representing the aqueous veins that drained blood mixed with aqueous humor were found to derive directly from the suprachoroidal space and communicate with the scleral venous plexus via the anterior vortex veins. The functional significance of the microvasculature of the iris, cilia, retina and choroid is discussed in this report as well. The elaborate microvasculature of the conjunctiva may be a prerequisite for the exchange of nutrients and gasses between the cornea and the vessels across the conjunctival epithelium when the eyelids are shut during sleep, and possibly for the dynamics of eye drop delivery. The scleral venous plexus in rabbits may be analogous to the scleral venous sinus (Schlemm's canal) in rats, primates and humans.<br>
収録刊行物
-
- The Journal of Veterinary Medical Science
-
The Journal of Veterinary Medical Science 70 (9), 887-892, 2008
公益社団法人 日本獣医学会
- Tweet
詳細情報
-
- CRID
- 1390282681405450752
-
- NII論文ID
- 130000442227
- 110006946002
-
- NII書誌ID
- AA10796138
-
- ISSN
- 13477439
- 09167250
-
- NDL書誌ID
- 9654570
-
- 本文言語コード
- en
-
- データソース種別
-
- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
-
- 抄録ライセンスフラグ
- 使用不可