Variations in the position and development of the kidneys
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Variations in the position and development of the kidneys

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Published by s.n. in [s.l .
Written in English


  • Kidneys -- Abnormalities.,
  • Kidneys -- Displacement.

Book details:

Edition Notes

Other titlesJournal of anatomy and physiology.
Statementby Macdonald Brown.
The Physical Object
Pagination15p. :
Number of Pages15
ID Numbers
Open LibraryOL19164989M

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Abstract. The zebrafish is a useful genetic and embryological model system for investigating renal development, regeneration, and disease. In Zebrafish, kidney development progresses through two types of kidney: the pronephros, a fully functional, two-nephron embryonic kidney and the mesonephros, the adult kidney comprising hundreds of nephrons. A practical guide to the stereological assessment of glomerular number, size, and cellular composition "The evaluation of a range of measures in the kidneys, such as developmental stage, rate and success, injury, and disease processes, relies on obtaining information on the three-dimensional structure of the renal corpuscles, and in particular the glomerular capillary tufts.   • The inferior poles of the kidneys may also fuse, forming a horseshoe kidney and ascent is stopped by inferior mesenteric artery • Kidney may fuse to the contralateral one and ascends to the opposite side, resulting in a cross-fused ectopy. Anomalous position • Malrotated Kidneys - Calyces face anteriorly or antrolaterally. During dissection classes for medical undergraduates, we observed morphological and vascular variations of the left kidney in a male cadaver aged approximately 65 years. The right kidney was normal in its morphology and vascular supply. The left kidney had an oval hilum on the medial half of its anterior surface (Figures 1 and 2).

Other variations (polycystic kidney, variations in the common iliac or gonadal veins) were observed. Only renal failure as a cause of death was different between those with . variations in the morphological structures into three types included contractile vacuoles in protozoa, nephridia (flame cell system) in most invertebrate animals and Malpighian tubules (arthropod kidney) in insects [2]. There are three distinct excretory organs formed in succession during the development of the vertebrate kidney, they are called. the urinary bladder, which stores the urine until the blad- der is emptied. The medial aspect of each kidney is indented in a region called the hilum,where the ureter, blood vessels, nerves, and lymphatic vessels enter or leave the Size: 2MB. Kidney development, or nephrogenesis, describes the embryologic origins of the kidney, a major organ in the urinary article covers a 3 part developmental process that is observed in most reptiles, birds and mammals, including humans. Nephrogenesis is often considered in the broader context of the development of the urinary and reproductive organs.

  While the normal kidneys show slight variations in position in their retroperitoneal abdominal location, ectopic kidneys are a common encounter in autopsies and the clinical set up. It is estimated that up to 40% of the urinary pathologies are a result of these anatomical variations [ Author: Afadhali Denis Russa. Start studying Human Phys. Chapter Learn vocabulary, terms, and more with flashcards, games, and other study tools. KIDNEY / n. z. 1. The kidneys and kidney disease. Most people have two kidneys. The kidneys are found on either side of the spine just below the ribs. The kidneys. clean your blood by working as a filter to remove water and wastes from the body. The wastes are what is left over in the blood from foodFile Size: KB. Anatomy & Physiology: The Kidneys • Vitamin D (calcitriol) is produced by the kidney to help promote calcium absorption from the intestine. • The kidney also produces erythropoietin which stimulates production of red blood cells. Measuring Kidney Function • On a blood panel, the “kidney values” are the BUN and creatinine. • Electrolyte values and urinalysis also provide .