Practice no. 10 – Glandular epithelia (deadline April 24, 2020)
1. Draw an idealized scheme of merocrine, holocrine and apocrine secretion, and provide
examples.
2. Graphically schematize the structure of goblet cells (using electronograms) and their
localization in epithelial tissue (covering epithelium of respiratory passages or intestinal
mucosa).
3. Provide examples of other single cell glands.
4. Graphically schematize the structure and classification of multicellular glands. Provide an
example to each morphological type.
5. What is the principal difference between endocrine and exocrine glands? Provide
examples of both types of glands, and graphically schematize their development.
6. Study and draw the principal units of large salivary glands - mucous tubules (gl.
submandibularis, gl. sublingualis) and serous acini (gl. parotis, gl. submandibularis,
pancreas) when stained by hematoxylin and eosin. Why do the mucous and serous
components stain differently?
7. Graphically schematize the structure of serous demilune (crescent of Gianuzzi). In which
gland the demilunes are present?
8. What is the difference between „mucus“ and „mucin“?
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