tactile corpuscles Exercise 6.3: Pigmented Skin Athough melanocytes are the cell

Question

tactile corpuscles Exercise 6.3: Pigmented Skin Athough melanocytes are the cells that produce melan in, the cells that actually concentrate the melanin in the apical region of the ous are : Layers of the Dermis Metch the definition listed in column A with t Coluane A the corresponding term listed in column B. Columa B a. dermal papilla b. epidermal ridge c. keratinocyte d. melanocyte 1 a cell located in the epidermis that produces melanin 2 an epithelial cell composing the majority of the epidermis 3, a fold of the epidermis that interdigitates with dermal papillae _ 4, a "nipplelike" extension of the dermis into the epidermis 6 The (papillary/reticular) layer of the dermis is the thickest layer of the dermis. Exercise 6.5: Merocrine (Eccrine) Sweat Glands and Sensory Receptors 7. Match the description listed in column A with the corresponding gland listed in columa B Columa B a. apocrine sweat glands b. eccrine sweat glands c. sebaceous glands Columa A 1. merocrine glands that empty into hair follicles 2. holocrine glands that empty into hair follicles 3. merocrne glands that open to the surface of the skin 8 Lamelilated (Pacinian) corpuscles are located in the papiliary layer of the dermis, whereas tactile (Meissner) corpuscles are located (True/False) in the reticular layer of the dermis. 138 Chapter Six Integument

Explanation / Answer

4. Although melanocytes are the cells that produce melanin, the cells that actually concentrate melanin in the apical region of the nucleus are melanosomes

5. i) a cell located in the epidermis that produces melanin- melanocyte

ii) an epithelial cell composing majority of epidermis- keratinocyte

iii) a fold of the epidermis that interdigitates with the dermal papillae- epidermal ridge

iv) a nipple like extension of the dermis into epidermis- dermal papilla

6. the reticular layer of the dermis is the thickest layer of the dermis

7. i). merocrine glands that empty into hair follicles- apocrine sweat glands

ii) holocrine glands that empty into hair follicles- sebacious glands

iii) merocrine glands that open to the surface of the skin- eccrine sweat glands

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