An ultrastructural study of the sinus epithelium in the mammary gland of the lactating ewe.

The teat and lactiferous sinus epithelium from the mammary glands of 23 lactating ewes was examined by light and electron microscopy. Most of the sinus epithelium consisted of two layers of non-secretory cells but, in the lactiferous sinus, cells with the same ultrastructural features as alveolar secretory cells were also found. Secretory cells sometimes… CONTINUE READING