Large quantities of keratin are found in the epidermal layer called the
The protein that reduces water loss at the skin surface is
Jaundice is indicated by
a yellowish skin coloration
The ________ in keratinocytes protects the epidermis and dermis from the harmful effects of sunlight
Types of skin cancers include
squamous cell carcinoma, malignant melanoma, and basal cell carcinoma
Children in northern regions experience months of inadequate sunlight exposure on the skin. To prevent possible abnormal bone development, what essential organic nutrient is necessary in the diet?
The layer of the skin that contains bundles of collagen and elastic fibers responsible for the strength of the skin is the ________ layer.
A surgical incision parallel to the lines of cleavage
closes and heals with relatively little scarring
The layer of hard keratin that coats the hair is termed the
Lanugo is found
on a fetus
When the arrector pili muscles contract,
"goose bumps" are formed
Glands that discharge an oily secretion into hair follicles are ________ glands.
Sensible perspiration is produced by ________ glands.
Merocrine sweat contains ________ to protect against bacteria.
________ sweat glands are widely distributed across the body surface, ________ glands are located wherever hair follicles exist, and ________ sweat glands are found only in a few areas.
Merocrine; sebaceous; apocrine
The nail body covers the
Nail production occurs at the nail
The stratum corneum just under the free-edge of a nail is the
The type of burn that may require a skin graft is a
Skin can regenerate effectively even after considerable damage has occurred because
stem cells persist in both epithelial and connective-tissue components of the skin even after injury
During repair of the integument, fibroblasts follow areas of new capillary growth and produce ________ tissue.
Charlie is badly burned in an accident. When he reaches the emergency room, the examining physician finds that he can remove entire hair follicles from Charlie's arm when he gently pulls on a hair with his forceps. Charlie is suffering from a
Wrinkles in elderly individuals are the result of
loss of elastic filaments in the reticular layer of the dermis