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==Glomerulus cartoon== | ==Glomerulus cartoon== | ||
The glomerulus is a lobulated net-work of convoluted capillary blood vessels, held together by scanty connective tissue. This capillary network is derived from a small arterial twig, the '''afferent vessel''', which enters the capsule, generally at a point opposite to that at which the latter is connected with the tubule; and the resulting vein, the efferent vessel, emerges from the capsule at the same point. The afferent vessel is usually the larger of the two (Fig. [[: File:Gray1129.jpg|1129]]). | The glomerulus is a lobulated net-work of convoluted capillary blood vessels, held together by scanty connective tissue. This capillary network is derived from a small arterial twig, the '''afferent vessel''', which enters the capsule, generally at a point opposite to that at which the latter is connected with the tubule; and the resulting vein, the '''efferent vessel''', emerges from the capsule at the same point. The afferent vessel is usually the larger of the two (Fig. [[: File:Gray1129.jpg|1129]]). | ||
The glomerular or Bowman’s capsule, which surrounds the glomerulus, consists of a basement membrane, lined on its inner surface by a layer of flattened epithelial cells, which are reflected from the lining membrane on to the glomerulus, at the point of entrance or exit of the afferent and efferent vessels. The whole surface of the glomerulus is covered with a continuous layer of the same cells, on a delicate supporting membrane (Fig. 1130). Thus between the glomerulus and the capsule a space is left, forming a cavity lined by a continuous layer of squamous cells; this cavity varies in size according to the state of secretion and the amount of fluid present in it. In the fetus and young subject the lining epithelial cells are polyhedral or even columnar. | The glomerular or Bowman’s capsule, which surrounds the glomerulus, consists of a basement membrane, lined on its inner surface by a layer of flattened epithelial cells, which are reflected from the lining membrane on to the glomerulus, at the point of entrance or exit of the afferent and efferent vessels. The whole surface of the glomerulus is covered with a continuous layer of the same cells, on a delicate supporting membrane (Fig. 1130). Thus between the glomerulus and the capsule a space is left, forming a cavity lined by a continuous layer of squamous cells; this cavity varies in size according to the state of secretion and the amount of fluid present in it. In the fetus and young subject the lining epithelial cells are polyhedral or even columnar. | ||
Latest revision as of 11:33, 2 August 2019
Glomerulus cartoon
The glomerulus is a lobulated net-work of convoluted capillary blood vessels, held together by scanty connective tissue. This capillary network is derived from a small arterial twig, the afferent vessel, which enters the capsule, generally at a point opposite to that at which the latter is connected with the tubule; and the resulting vein, the efferent vessel, emerges from the capsule at the same point. The afferent vessel is usually the larger of the two (Fig. 1129).
The glomerular or Bowman’s capsule, which surrounds the glomerulus, consists of a basement membrane, lined on its inner surface by a layer of flattened epithelial cells, which are reflected from the lining membrane on to the glomerulus, at the point of entrance or exit of the afferent and efferent vessels. The whole surface of the glomerulus is covered with a continuous layer of the same cells, on a delicate supporting membrane (Fig. 1130). Thus between the glomerulus and the capsule a space is left, forming a cavity lined by a continuous layer of squamous cells; this cavity varies in size according to the state of secretion and the amount of fluid present in it. In the fetus and young subject the lining epithelial cells are polyhedral or even columnar.
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Reference
Gray H. Anatomy of the human body. (1918) Philadelphia: Lea & Febiger.
Cite this page: Hill, M.A. (2024, April 18) Embryology Gray1130.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Gray1130.jpg
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