![This is blank.](https://digitalhistology.org/wp-content/themes/histology-unified/imgs/trans.png)
Parathyroid gland
The special stain used in these images clearly reveals the distribution of oxyphil cells among the more numerous principal cells. Principal cells have sparse amounts of cytoplasm and heterochromatic nuclei. Oxyphil cells have more abundant cytoplasm, which stains reddish due to presence of large numbers of mitochondria. 400x, 1000x
![Principal cells <p>The special stain used in these images clearly reveals the distribution of oxyphil cells among the more numerous principal cells. Principal cells have sparse amounts of cytoplasm and heterochromatic nuclei. Oxyphil cells have more abundant cytoplasm, which stains reddish due to presence of large numbers of mitochondria. 400x, 1000x</p>](https://digitalhistology.org/wp-content/uploads/2019/06/Or.Endo_.Para-5-1A-ping.png)
Principal cells
The special stain used in these images clearly reveals the distribution of oxyphil cells among the more numerous principal cells. Principal cells have sparse amounts of cytoplasm and heterochromatic nuclei. Oxyphil cells have more abundant cytoplasm, which stains reddish due to presence of large numbers of mitochondria. 400x, 1000x
![Oxyphil cells <p>The special stain used in these images clearly reveals the distribution of oxyphil cells among the more numerous principal cells. Principal cells have sparse amounts of cytoplasm and heterochromatic nuclei. Oxyphil cells have more abundant cytoplasm, which stains reddish due to presence of large numbers of mitochondria. 400x, 1000x</p>](https://digitalhistology.org/wp-content/uploads/2019/06/Or.Endo_.Para-5-2A-ping.png)
Oxyphil cells
The special stain used in these images clearly reveals the distribution of oxyphil cells among the more numerous principal cells. Principal cells have sparse amounts of cytoplasm and heterochromatic nuclei. Oxyphil cells have more abundant cytoplasm, which stains reddish due to presence of large numbers of mitochondria. 400x, 1000x
![Capillaries <p>The special stain used in these images clearly reveals the distribution of oxyphil cells among the more numerous principal cells. Principal cells have sparse amounts of cytoplasm and heterochromatic nuclei. Oxyphil cells have more abundant cytoplasm, which stains reddish due to presence of large numbers of mitochondria. 400x, 1000x</p>](https://digitalhistology.org/wp-content/uploads/2019/06/Or.Endo_.Para-5-3A-ping.png)
Capillaries
The special stain used in these images clearly reveals the distribution of oxyphil cells among the more numerous principal cells. Principal cells have sparse amounts of cytoplasm and heterochromatic nuclei. Oxyphil cells have more abundant cytoplasm, which stains reddish due to presence of large numbers of mitochondria. 400x, 1000x