Renal papilla
Papillary ducts of Bellini discharge urine into the lumen of a minor calyx, forming a perforated region of the papilla called the area cribrosa. The minor calyx is continuous with a major calyx, which continues into the renal pelvis. In general, these excretory passages are lined by transitional epithelium resting on a thin lamina propria and a double layer of smooth muscle. 200x
Renal papilla
Papillary ducts of Bellini discharge urine into the lumen of a minor calyx, forming a perforated region of the papilla called the area cribrosa. The minor calyx is continuous with a major calyx, which continues into the renal pelvis. In general, these excretory passages are lined by transitional epithelium resting on a thin lamina propria and a double layer of smooth muscle. 200x
- Papillary ducts
Papillary ducts of Bellini discharge urine into the lumen of a minor calyx, forming a perforated region of the papilla called the area cribrosa. The minor calyx is continuous with a major calyx, which continues into the renal pelvis. In general, these excretory passages are lined by transitional epithelium resting on a thin lamina propria and a double layer of smooth muscle. 200x
- Opening of papillary duct
Papillary ducts of Bellini discharge urine into the lumen of a minor calyx, forming a perforated region of the papilla called the area cribrosa. The minor calyx is continuous with a major calyx, which continues into the renal pelvis. In general, these excretory passages are lined by transitional epithelium resting on a thin lamina propria and a double layer of smooth muscle. 200x
- Vasa recta
Papillary ducts of Bellini discharge urine into the lumen of a minor calyx, forming a perforated region of the papilla called the area cribrosa. The minor calyx is continuous with a major calyx, which continues into the renal pelvis. In general, these excretory passages are lined by transitional epithelium resting on a thin lamina propria and a double layer of smooth muscle. 200x
- Area cribrosa
Papillary ducts of Bellini discharge urine into the lumen of a minor calyx, forming a perforated region of the papilla called the area cribrosa. The minor calyx is continuous with a major calyx, which continues into the renal pelvis. In general, these excretory passages are lined by transitional epithelium resting on a thin lamina propria and a double layer of smooth muscle. 200x
Minor calyx
Papillary ducts of Bellini discharge urine into the lumen of a minor calyx, forming a perforated region of the papilla called the area cribrosa. The minor calyx is continuous with a major calyx, which continues into the renal pelvis. In general, these excretory passages are lined by transitional epithelium resting on a thin lamina propria and a double layer of smooth muscle. 200x
Minor calyx lumen
Papillary ducts of Bellini discharge urine into the lumen of a minor calyx, forming a perforated region of the papilla called the area cribrosa. The minor calyx is continuous with a major calyx, which continues into the renal pelvis. In general, these excretory passages are lined by transitional epithelium resting on a thin lamina propria and a double layer of smooth muscle. 200x
Transitional epithelium
Papillary ducts of Bellini discharge urine into the lumen of a minor calyx, forming a perforated region of the papilla called the area cribrosa. The minor calyx is continuous with a major calyx, which continues into the renal pelvis. In general, these excretory passages are lined by transitional epithelium resting on a thin lamina propria and a double layer of smooth muscle. 200x
Area shown in next image >
The area indicated by the rectangle is shown at higher magnification in the next image.
Image source >
Image taken of a slide in the University of Iowa slide collection.