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Histological study to the nephrons of the kidney in Dogs (Canisfamiliaris) in midlle of Iraq
دراسة نسيجية لنفرونات الكلية في الكلاب (Canisfamiliars ) في وسط العراق

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Abstract

In order to study the histology of the nephrons ofDogs.Samples were collected from middle of Iraq. The result revealed that thekidney of Dog hadthick capsule. The kidneysoccupied by long nephrons which excrete concentrated urine.The rest were short loop nephrons. Some renal corpuscles were present in the region of juxamedullary and midcortical cortex region The large amount of renal corpuscle in juxamedullary region regarded as the structural properties of the dog kidney, to void concentration urine .The proximal convoluted tubules had large lumen and high cuboidal epithelium cells with spherical nuclei.

من اجل اجراء دراسة نسيجية لنفرونات كلية الكلاب تم جمع عينات من مناطق الفرات الاوسط /العراق بينت النتائج ان محفظة كلية الكلاب سميكة .اظهرت النتائج ان الكليونات في كلية الكلاب من النوع طويل العرى والذي يطرح ادرار مركز اما المتبقي من النوع قصير العرى .وقعت معظم الكليونات في المنطقة المجاورة للب والمنطقة وسط القشرة .العدد الكبير من الكليونات في منطقة المجاورة للب يعد من خصائص تركبيبة للكلاب لطرح ادارار مركز . احتوت النبيبات الدانية الملتوية على اقطار كبيرة وظهارة بطانية مكعبة عالية مع انوية دائرية.

Keywords

Nephrons --- kidney --- dogs --- histological.


Article
Morphological anatomical and histological study of the normal kidneys in the House Mice (Mus Musculus)

Author: Ahmed Adeeb Mohamed
Journal: Almuthanna Journal of Pure Science (MJPS) مجلة المثنى للعلوم الصرفة ISSN: 22263284 Year: 2014 Volume: 2 Issue: 1
Publisher: Al-Muthanna University جامعة المثنى

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Abstract

The house mice kidneys lay on each side of the upperlumbar vertebra in the abdominal cavity behind theperitoneum. The right kidney was situated more craniallythan the left. The shape of two kidneyswas bean likestructure. The mean weight of the right kidney was0.076±0.013gm while, the left kidney was0.072±0.011gm. The mean length, width and thickness ofthe right kidneys were 7.4±0.647mm, 5.098±0.427mm,3.624±0.198mm respectively while those of the left were6.8±0.518mm, 4.768±0.481mm,3.468±0.123mmrespectively. The kidneys consist of twodistinct regions, the outer cortex is reddish brown in colorand inner medulla, and both terminate bysingle elongatedrenal papillae. The house mice kidneys were covered by athin dense connective tissue capsule with adipose tissue.The nephron composed of large and small rounded orirregular renal corpuscle; each The renal corpuscle isforms the glomeruli that enveloped by Bowman’s capsule,and the proximal convoluted tubules, loop of Henle andthe distal convoluted tubules. The cortex consists fromrenal corpuscles, proximal convoluted tubules and distalconvoluted tubules. The proximal convoluted tubule arisesfrom the parietal epithelium of Bowman’s capsule of theurinary pole of the renal corpuscle lined by simple highcuboidal epithelium. The distal convoluted tubules werelined by simple low cuboidal epithelium. The part of thedistal convoluted tubule in contact with glomerular roothas the macula densa. The medulla of each kidney isformed from thick parts lined bysimple cuboidalepithelium and thin parts of the loops of Henle lined bysimple squamous epithelium and the thin limb had adistinct rounded lumen and collecting tubules are lined bypale cuboidal epithelium with rounded nuclei andMJPS….Vol.(2)….No(1)….December 2014basophilic cytoplasm. The terminal portion of thesetubules is lined by columnar epithelium and is calledpapillary ducts.

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