the cells making up the thin internal theca of the follicle of the barbary duck and which contain are 3 beta hsdh enzyme show all of the ultrastructural characteristics of steroid cells : a well-developed smooth reticulum , tubular cristae mitochondria , a considerable load in lipid inclusionologous cells of the peking duck since they are constantly more dense and their cristae are bigger and less numerous .
C0026237
mitochondria
C0007634
cells