Foundations - Histology Epithelia and Skin
Introduction
Background and Self-directed Learning for Medicine Foundations.
Practical - Histology Epithelia and Skin Virtual Slides by Patrick de Permentier.
This current page content is not part of the Foundations practical class.
Objectives
Epithelia
- Obtain an understanding of the histological appearance of various types of epithelia based on their cellular shape and number of layers.
- To examine the histological appearance of 2 other unique types of epithelia namely pseudostratified and transitional.
- To demonstrate some sites where the types of epithelia can be located
- To demonstrate certain epithelial specialisations such as microvilli and cilia.
- Relate the morphology of the epithelia to their various functions.
Skin
- To know the microscopic structure of the skin e.g. epidermis, dermis and hypodermis.
- To know the histological differences between hairy (thin) and glabrous (thick) skin.
- To know the histology of associated structures e.g. eccrine and apocrine sweat glands,
sebaceous glands, and hair.
- To know the histological features of some sensory receptors namely: Pacinian and Meissner
corpuscles.
Epithelia
Epithelium forms continuous layers of cells that cover surfaces and line cavities of the body.
Epithelia cell shape | Epithelia sectioning appearance |
Epithelia Classification
- The number of cell layers: a single layer = simple epithelium; epithelia composed of more than one layer = stratified epithelia.
- The shape of the component cells when seen in sections taken at right angles to the epithelial surface: the shape may be squamous (flattened), cuboidal (about equal dimensions), or columnar (taller than it is wide).
- The presence of surface specializations e.g. cilia, microvilli and keratin.
Simple Squamous
Virtual slides: Distributing artery and vein and Aorta
Simple Cuboidal
Virtual slides: Thyroid gland and Kidney
Simple Columnar
Virtual slides: Fallopian tube-isthmus and Duodenum
Skin
Terms
External Links
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- Blue Histology Epithelia | Skin
- UNSW Virtual Slides Medicine phase 1 (requires login for access). Histology Epithelia and Skin Virtual Slides
- UIOWA Virtual Slidebox of Histology Skin
Glossary Links
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Cite this page: Hill, M.A. (2024, June 17) Embryology Foundations - Histology Epithelia and Skin. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Foundations_-_Histology_Epithelia_and_Skin
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G