The macula densa site of avian kidney.
D000818:Animals; D001158:Arteries / Q000166:cytology; D001717:Birds / Q000033:anatomy & histology*; D002467:Cell Nucleus; D004721:Endoplasmic Reticulum; D006056:Golgi Apparatus; D007606:Juxtaglomerular Apparatus / Q000166:cytology*; D007668:Kidney / Q000098:blood supply / Q000166:cytology*; D007684:Kidney Tubules / Q000166:cytology; D008854:Microscopy, Electron; D008928:Mitochondria; D011200:Poultry / Q000033:anatomy & histology*