Histological studies of some internal organs from the Freshwater Mite, Unionicola aegyptiaca collected from the Mussel, Caelatura aegyptiaca, Sohag, Egypt. | ||
| Sohag Journal of Sciences | ||
| Article 3, Volume 7, Issue 1, January 2022, Pages 15-23 PDF (875.24 K) | ||
| Document Type: Regular Articles | ||
| DOI: 10.21608/sjsci.2022.233170 | ||
| Authors | ||
| Somaia A. Ramadan* ; Tarek G. Ismai; Asmaa N. Mustafa | ||
| Zoology Department, Faculty of Science, Sohag University, Egypt | ||
| Abstract | ||
| This study invesyigates the digestive system of freshwater mite, Unionicola aegyptiaca which starts with an anteroventrally mouth opening and ends with a posterodorsally anal opening. This system occupies a major portion of the body cavity and consists of three main parts: the foregut (mouth, muscular pharynx and oesophagus), the midgut (ventriculus with its associated three pairs of gastric caeca) and the hindgut (rectal tube and rectum). A pair of salivary glands is situated ventrolaterally in the anterior end of the body cavity. The main excretory system of the present freshwater mite consists of a pair of elongated Malpighian (excretory) tubules which extends along the length of the body. The nervous system of the present species consists of a central nerve mass (brain) with several nerve trunks that branched to supply nerves to various body parts. The brain is separated into two regions: supraoesophageal and suboesophageal nervous masses. | ||
| Keywords | ||
| Internal anatomy; Histology; Unionicola aegyptiaca; Caelatura aegyptiaca; Egypt | ||
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