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Overview
Steroids are a second major type of hormone. Steroid-secreting cells are common in the adrenal gland, ovary and testis. Steroid hormones are derived from cholesterol, so these cells are filled with lipid droplets, giving the cells a frothy appearance. Adrenal cortex 1000x
![Steroid-secreting cells > <p>Steroid-secreting cells are usually spherical with a central nucleus. These cells are filled with lipid droplets, producing a frothy appearance to the cytoplasm. These cells are rich in SER and possess mitochondria with tubular cristae to aid in the production of the steroid hormones.</p>](https://digitalhistology.org/wp-content/uploads/2017/07/Or.Endo_.Ov-4-1-ping.png)
Steroid-secreting cells >
Steroid-secreting cells are usually spherical with a central nucleus. These cells are filled with lipid droplets, producing a frothy appearance to the cytoplasm. These cells are rich in SER and possess mitochondria with tubular cristae to aid in the production of the steroid hormones.
![- Lipid droplets <p>Steroid-secreting cells are usually spherical with a central nucleus. These cells are filled with lipid droplets, producing a frothy appearance to the cytoplasm. These cells are rich in SER and possess mitochondria with tubular cristae to aid in the production of the steroid hormones.</p>](https://digitalhistology.org/wp-content/uploads/2017/07/Or.Endo_.Ov-4-2-ping.png)
- Lipid droplets
Steroid-secreting cells are usually spherical with a central nucleus. These cells are filled with lipid droplets, producing a frothy appearance to the cytoplasm. These cells are rich in SER and possess mitochondria with tubular cristae to aid in the production of the steroid hormones.
![Fenestrated capillaries > <p>Like peptide-secreting organs, steroid-secreting organs also possess fenestrated capillaries. In the adrenal gland, shown here, these capillaries have a wide diameter.</p>](https://digitalhistology.org/wp-content/uploads/2017/07/Or.Endo_.Ov-4-3-ping.png)
Fenestrated capillaries >
Like peptide-secreting organs, steroid-secreting organs also possess fenestrated capillaries. In the adrenal gland, shown here, these capillaries have a wide diameter.
![- Red blood cells <p>Like peptide-secreting organs, steroid-secreting organs also possess fenestrated capillaries. In the adrenal gland, shown here, these capillaries have a wide diameter.</p>](https://digitalhistology.org/wp-content/uploads/2017/07/Or.Endo_.Ov-4-4-ping.png)
- Red blood cells
Like peptide-secreting organs, steroid-secreting organs also possess fenestrated capillaries. In the adrenal gland, shown here, these capillaries have a wide diameter.