Light micrograph of the inner region of the renal medulla. 0.5 micrometre thick section stained with toluidine blue and embedded in a synthetic resin. The micrograph shows three cross-sectioned papillary or Bellini ducts. These ducts, resulting from the fusion of collecting tubes (an average of 7 fusions) reach a diameter of 100-200 micrometres, and are covered by a simple columnar epithelium, formed by clear cells. The space between the ducts is occupied by very thin tubes of two types. One, the most abundant, is lined by a very thin simple squamous epithelium (endothelium). They are blood vessels, both capillaries and venules. The second type has a smaller diameter and has a higher epithelium: they are Henle's loops. Magnification: x360 when printed at 10 centimetres across. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / JOSE CALVO |
Bildgröße: | 4674 px × 3739 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |