Page 500 - Atlas of Histology with Functional Correlations

C. in the stratum granulosum.

D. in the hypodermis.

E. in the dermal papillae.

ANSWERS

1. Correct Answer: E. Epithelium of the epidermis. Epithelial cells from the
epidermis grow downward into the dermis where they form the skin
derivatives.

2. Correct Answer: C. The contraction of myoepithelial cells. Myoepithelial

cells surround the secretory portions of the glands like a basket. When they
contract, the secretion is expelled from the gland.

3. Correct Answer: A. The contraction of arrector pili muscles. These smooth
muscle fibers are attached to the connective tissue of the hair follicle and

the dermis. Sebaceous glands are located between the arrector pili muscle
and the hair follicle. When arrector muscle fibers contract, the sebaceous
gland secretion is expelled.

4. Correct Answer: D. Bone marrow. From here, the cells are carried to the
epidermis of the skin, where they reside and perform immune functions.

5. Correct Answer: E. In the dermal papilla. Dermis indents the epidermis,

and Meissner corpuscles are found in some of these indentations.

ADDITIONAL HISTOLOGIC IMAGES

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