anatomical and histomorphometrical study of sheep’s thymus was conducted by 75 apparently healthy fetuses that collected from urmia’s industrial slaughterhouse. after anatomical study, the samples were fixed in 10% formal saline, passaged and histological paraffin sections prepared in 5-7 μm in thickness, and by h&e; method stained. histomorphometrical study performed by graded and latticed len...

In this research foliar anatomy of seven species of Avena are studied under the light microscope and the scanning electron microscope (SEM). This study includes seven species, namely, A. barbata, A. clauda, A. eriantha, A. fatua, A. ludoviciana, A. sativa and A. wiestii. Different anatomical characters sush as number of bulliform cells, mesophyll thickness, midrib, number of vascular bundles fr...

In this research, five species of genus Polystichum, belong to Aspidiaceae, namely, P. lonchitis, P. woronowii, P. setiferum, P. braunii and P. aculeatum, gathered from Gilan and MazandaranProvinces were anatomically studied. To distinguish anatomical character of different growing organs such as pinnules, rachis, rhizumes and roots, the cross section was prepared. Based on these researches, id...

 Abstract Introduction: external nasal walls are  an important factor  in the drainage or obstruction of the ostiomeatal complex, therfor  anatomical variations in the nasal cavity can elevate the risk of pathological sinus conditions. The aim of this study is to evaluate anatomical variations of paranasal sinuses and nasal cavities using cone beam computed tomography (CBCT). Materials and ...

the carotid is a small mass of chemoreceptor's and sustentacular cells that detects changes in the composition of the arterial blood. the aim of the present study was to identify the size, color, location, blood and nerve supply of the carotid body in makouei sheep. fourteen heads of sheep from both sexes were collected from urmia public slaughter-house. the exact situation and nerve supply of ...