| Description: | This is from the trachea of a cat at low power. The mucus in the goblet
cells stain light blue. Note the "staggered" arrangement of the nuclei
in this pseudostratified epithelium. In the trachea and the primary
bronchus, you will not find a well-developed band of muscularis mucosae
made up of smooth muscles. Thus the lamina propria and the submucosa
blend together. The cells of the submucosal glands contain purplish
serous granules and bluish globules of mucus in the cytoplasm. There is
a separation artifact between the connenctive tissue in the
propria-submucosa and the hyaline cartilage. In this section the red
blood cells stain yellow (as seen in the small vein in the center of
the picture). PK1596. K2c. Original mag. 50x. AB-PAS-FeH-PA. Trachea.
Respiratory System. Cat. |