410646

Microscopic Structure of The Tarsal Crypt System in Camels

Article

Last updated: 15 Feb 2025

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Abstract

The tarsal crypt system is formed by several invaginations in the conjunctiva that house secretory cells, mainly goblet cells, and played a role in the formation of a mucus layer of tear film. Little is known about this system in domestic animals and camels. The purpose of this study was to describe in detail the microscopic structures of the tarsal crypt system in dromedaries. A total of five pairs of eyelids were used for this purpose. The samples were harvested immediately after slaughter from the heads of apparently healthy, adult male camels. The tarsal crypt system in camels was not found only as direct invaginations within the tarsal margin, but also within the tarsal plate itself. A capillary invagination within the tarsal plate with numerous crypts was present. At the entrance of this capillary invagination, a large, wide crypt of about fourth to fifth times the size of the typical crypt was observed. Not all the crypts were typically tubular, some were in the form of shallow grooves. The secretory cells were mostly goblet cells, in addition, different secretory cells were also noticed. The mucosal-associated lymphoid tissue surrounded the perimeter of all crypts and was diffused in lamina propria. The secretory cells within the crypts as well as the associated lymphoid tissue suggested that the tarsal crypt system in Camel may not only have a role in the formation of tear film in dromedaries, but functions in immune defense as a part of the conjunctiva-associated lymphoid tissue strongly recommended.

DOI

10.21608/eajbsd.2025.410646

Keywords

Dromedaries, Tarsus, Tarsal crypt, Eyelids, Tear film

Authors

First Name

Basma

Last Name

Barakat

MiddleName

-

Affiliation

Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Benha University, Egypt.

Email

basma.abdelhafez@fvtm.bu.edu.eg

City

Egypt

Orcid

-

First Name

Mohamed

Last Name

Metwally

MiddleName

A.

Affiliation

Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Benha University, Egypt.

Email

mohamed.mitwalli@fvtm.bu.edu.eg

City

Egypt

Orcid

-

First Name

Hanan

Last Name

Abd-El Hafeez

MiddleName

H.

Affiliation

Department of Cell and Tissues, Faculty of Veterinary Medicine, Assiut University, Egypt.

Email

-

City

Egypt

Orcid

-

First Name

Ahmed

Last Name

Abo-Ahmed

MiddleName

I.

Affiliation

Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Benha University, Egypt.

Email

ahmed.ibrahim@fvtm.bu.edu.eg

City

Egypt

Orcid

-

First Name

Eman

Last Name

Eshrah

MiddleName

-

Affiliation

Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Benha University, Egypt.

Email

eman.eshrah01@fvtm.bu.edu.eg

City

Egypt

Orcid

-

Volume

17

Article Issue

1

Related Issue

52842

Issue Date

2025-06-01

Receive Date

2025-01-02

Publish Date

2025-02-11

Page Start

11

Page End

20

Print ISSN

2090-0775

Online ISSN

2090-0848

Link

https://eajbsd.journals.ekb.eg/article_410646.html

Detail API

http://journals.ekb.eg?_action=service&article_code=410646

Order

410,646

Type

Original Article

Type Code

685

Publication Type

Journal

Publication Title

Egyptian Academic Journal of Biological Sciences, D. Histology & Histochemistry

Publication Link

https://eajbsd.journals.ekb.eg/

MainTitle

Microscopic Structure of The Tarsal Crypt System in Camels

Details

Type

Article

Created At

08 Feb 2025