Procedure Microscopy of Thick Skin obtain a prepared slide of thick skin (which

Question

Procedure Microscopy of Thick Skin obtain a prepared slide of thick skin (which may be labeled "Palmar Skin"), and examine it with the naked eye to get oriented. Once you are oriented, place the slide on the stage of the microscope, and scan it on low power. You should be able to see the epidermis with its superficial layers of dead cells and the dermis with its pink clusters of collagen bundles that make up the dense irregular collagenous connective tissue. Advance to higher power to see the cells and associated structures in greater detail. Use your colored pencils to draw what you see in the field of view (you will be able to see the most structures on low power). Label your drawing with the following terms, using Figure 6.5 for reference. When you have completed your drawing, fill in Table 6.2. 1. Epidermis 2. Dermis a. Stratum corneum a. Dermal papillae b, stratum lucidum b. Collagen bundles c, Stratum granulosum c. Sweat gland d. Stratum spinosum e. Stratum basale

Explanation / Answer

Thick skin covers the palms and soles, does not have hair follicles, arrector pili muscles or sebaceous glands, sweat glands and is subject to abrasions, wear and tear.
Thin skin refers to the thickness of the epidermis and covers most of body. It has hair follicles, arrector pili muscles, sebaceous glands and sweat glands. The thin skin is hairy, goose-bumpy, oily, and sweaty.

Characteristic Thick skin Thin skin Thickness of stratum corneum large small Hair follicles present No Yes Sebaceous glands present? No Yes Stratum lucidum present? Yes No Arrector pili muscles present? No Yes

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