histopathology in glands

1. D R S A ND EEP S INGH
Glands ? HIStopathology

20. Simple tubular glands
single, straight tubular lumen into which the secretory products are discharged.
In this example, secretory cells line the entire duct; the secretory cells are goblet cells. The glands
are shown in longitudinal section in micrograph (b) and in transverse section in (c), which emphasiz
regular arrangement of the glands and the large number of mucus-secreting goblet cells in the epithe

23. Simple acinar glands
Present in the form of pockets in epithelial surfaces and are lined by secretory cells.
In this example of the mucus-secreting glands of the penile urethra, the secretory cells are pale stained
compared to the non-secretory cells lining the urethra.

24. Simple branched acinar gland
Ex. Sebaceous glands. Each gland consists of several secretory acini A that empty into a single excretory
Which is lined by the stratified epithelium surrounding the hair shaft. sebaceous glands is holocrine.

25. Compound branched tubular gland
Ex. Brunner’s gland of duodenum.The duct system D is branched, thus defining the glands as compoun
glands, and the secretory portions S have a tubular form which is branched and coiled

26. Compound acinar gland
Ex. Exocrine glands of Pancreas. In this secretory units are acinar in form and drain into a branched
system. In this micrograph consists of numerous acini, each of which drains into a minute duct.

27. Compound tubulo-acinar gland
Ex. Submandibular gland. Three types of secretory units: branched tubular,
branched acinar and branched tubular with acinar end-pieces called demilunes.
It contains two types of secretory cells, mucus-secreting cells T form tubular compinent
and serous cells A form acinar component; and demilunes D.