Detail of the glandular zone of the submucous observed with the objective of 100x. We can distinguish some acinar-type glands (yellow), whose secretion is spilled into the lumen through the excretory conduits (in cross-section). Around the glands, there is conjunctive tissue containing abundant blood vessels, in which we can observe the nuclei of the endothelial cells that form the wall, as well as numerous red corpuscles and some leukocyte