A Study of The Histogenesis of Sheep Fetus Iris

Saadatlou, Mohammad Ali Ebrahimi; Tavousi, H.; Keyhanmanesh, ‬Rana

doi:10.9775/kvfd.2012.7846

Cited by 2 publications

(2 citation statements)

References 12 publications

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“…However, in the present investigation, the sclera formed most of the fibrous layer. This is in agreement with the conclusions of Tavousi et al (2013), who stated that the sclera made up 85%. In addition, in this study, the corneoscleral junction is strongly pigmented in black.…”

Section: Discussionsupporting

confidence: 93%

Anatomical and histological characteristics of the dromedary eye (Camelus dromedarius)

Rahmoun¹,

Lieshchova²,

Gherissi³

et al. 2020

TAVM

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The anatomy and features of the histological structure of the components of the eye of a one-humped camel were investigated. Ultrasound examinations of the eye, determination of the iridocorneal angle with a gynoscope were carried out on live animals in the clinic after the introduction of eye drops (xylocaine 2%, atropine sulfate 3%). The condition of the eye membranes was determined by histological methods. The studies were carried out on twenty eyeballs from ten clinically healthy adult camels, selected during slaughter in a meat processing enterprise. The anatomical and topographic features of the organ, its membranes and structures, absolute and relative mass, and linear measurements were determined. Thin histological sections of the eye wall were stained with hematoxylin and eosin, impregnated with silver nitrate, followed by examination under a microscope. In a one-humped camel, the eyelashes of both eyelids are very thick and long. The internal architectonics of the eyeball of a one-humped camel is similar to that of other animal species. The lens was found to be a transparent biconvex structure located inside the eyeball just behind the iris. The cornea of the eye occupies almost the entire visible part of the eye. The ciliary body is located behind the iris near the lens. The main functions of the ciliary body are the formation of intraocular fluid (aqueous humor), which fills the front of the eye. The ciliary body contains muscles that enable the eye to focus on objects located at different distances. A feature of the camel's eye is the very open iridocorneal angle. The retina is built up by nerve tissue that lines the back of the eye. The retina perceives light, generates impulses that pass through the optic nerve and are sent to the brain. The histological structure of the membranes of the eye was studied after applying routine methods. It has been established that the eyes are built by various types of tissues, in particular, epithelial (epithelium of the conjunctiva), dense loose connective tissue (the corneal substance itself), loose connective tissue and pigment tissue (choroid) and nervous tissue with a layer of melanocytes and keratinocytes.

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Section: Discussionsupporting

confidence: 93%

Anatomical and histological characteristics of the dromedary eye (Camelus dromedarius)

Rahmoun¹,

Lieshchova²,

Gherissi³

et al. 2020

TAVM

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“…Eye is one of important organs of the body and has many roles in relationship between animal and environment [28] .…”

Section: Discussionmentioning

confidence: 99%

Anadolu Çoban Köpeklerinde (Canis familiaris) Siliyer Cisim ve İridokorneal Açı Üzerine Morfolojik Bir Çalışma

Akbalık¹,

ERDOĞAN²,

Sağsöz³

et al. 2015

Kafkas Univ Vet Fak Derg

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This study was carried out to determine morphological structures of Anatolian Shepherd dog eye to compare with other animals. This important sensory organ from five adult male dogs were investigated by light microscopic and scanning electron microscopic analyses. Anatolian Shepherd dog cornea is about 435 (center) to 501 (periphery) µm thick. The dense pigmentation observed in the anterior and posterior iridal epithelium. The ciliary cleft of the iridocorneal angle was not large and well-developed. The ciliary processes, another component of the ciliary body, formed the conspicuous bundles. In conclusion, it is considered that the description of the morphological properties of both the iridocorneal region and the ciliary body would contribute to the interpretation of the functional correlation, thus to future experimental studies to be conducted in this field. Keywords: Dog, Eye, Iridocorneal angle, Ciliary body, Morphology Anadolu Çoban Köpeklerinde (Canis familiaris) Siliyer Cisim ve İridokorneal Açı Üzerine Morfolojik Bir Çalışma ÖzetBu çalışma diğer hayvanlarla karşılaştırma yapmak üzere Anadolu Çoban köpeği gözündeki morfolojik yapıları belirlemek amacıyla yapılmıştır. Beş yetişkin erkek köpekten elde edilen bu önemli duyu organı ışık ve taramalı elektron mikroskobu ile incelenmiştir. Anadolu Çoban köpeğinin korneası merkezde 435, periferde ise yaklaşık 501 mikron kalınlığındaydı. İrisin anterior ve posterior epitelinde yoğun pigmentasyon gözlendi. İridokorneal açının siliyer aralığı büyük ve çok gelişmiş değildi. Siliyer cismin başka bir bileşeni olan siliyer uzantılar belirgin şekilde demetler oluşturdu. Sonuç olarak, hem iridokorneal bölgenin hem de siliyer cismin morfolojik özelliklerinin tanımlanması fonksiyonel ilişkinin yorumlanmasına katkı sağlayarak daha sonra yapılacak deneysel çalışmalara da faydalı olabileceği düşünülmektedir.

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A Study of The Histogenesis of Sheep Fetus Iris

Cited by 2 publications

References 12 publications

Anatomical and histological characteristics of the dromedary eye (Camelus dromedarius)

Anatomical and histological characteristics of the dromedary eye (Camelus dromedarius)

Anadolu Çoban Köpeklerinde (Canis familiaris) Siliyer Cisim ve İridokorneal Açı Üzerine Morfolojik Bir Çalışma

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