39. Keloid scars are raised, thick, and irregular in appearance. A possible caus

Question

39. Keloid scars are raised, thick, and irregular in appearance. A possible cause of kel scarring is an incision made across the oid A. epidermis. B. stratum spinosum. C. cleavage lines of the dermis. D. hypodermis. E. stratum corneum. 40. The sloughing off of older cells from the surface of the skin is called A. pollination. B. keratinization. C. melaninization. D. germination. E. desquamination 41·The layer of epidermis that undergoes mitosis and forms new epidermal cells is the A. stratum basale. B. stratum granulosum. C. stratum lucidum. D. stratum corneum. E. stratum dermum. 42. Keratinization

Explanation / Answer

39)C.cleavage lines of the dermis.

Keloid scars are raised, thick, and irregular in appearance. A possible causeof keloid scarring is an incision made across the cleavage lines of the dermis.

40)E.desquamation

The shedding of outer layer of tissue also called skin peeling.

41)B. stratum basale

It includes cells that undergo mitosis to form new epidermal cells.

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