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Albinism is the genetic lack of melanin that results in a milky white coloration of the skin.
Merocrine sweat glands are associated with hair follicles in the pubic and anal regions, axilla, areola, and beard.
Pattern baldness is relatively rare in women because women have lower testosterone levels than men.
The acidity of sweat contributes to the acid mantle that inhibits bacterial growth in the skin.
Skin covering the __________ has sweat glands but no hair follicles or sebaceous (oil) glands.
This image shows structures of the skin and subcutaneous tissue. What does "3" represent?
Collagen and fibroblasts
This image shows structures of the skin and subcutaneous tissue. ________ are found in the layer of the skin represented as "2".
stratified squamous epithelium; dense irregular connective tissue
This image shows structures of the skin and subcutaneous tissue. Layer "1" represents _____, whereas layer "2" represents ___________.
This image shows strata and cell types of the epidermis. ________ represents a living keratinocyte belonging to the stratum basale
living keratinocyte; melanocyte
This image shows strata and cell types of the epidermis. "2" represents a _________, whereas "4" represents a _________.
dendritic (Langerhans) cells
These cells stand guard against toxins, microbes and other pathogens.
. Leather is mostly made of the __________ layer of the dermis, which is very tough due to the high concentration of ____________ fibers
quantity of melanin produced
Ethnic differences in skin color are primarily caused by differences in
The hair present only prenatally is called ___________, most of which is replaced by ____________ by the time of birth.
hairs to stand on end with no apparent function.
The contraction of the piloerector muscles (pilomotor muscle or arrector pili) in humans causes
anagen, catagen, and telogen.
A hair cycle consists of three developmental stages in the following order
The narrow zone of dead skin overhanging the proximal end of a nail is called
The oil of your scalp is secreted by __________ glands associated with the hair follicles.
Secretions from __________ glands contribute the acid mantle that inhibits bacterial growth on the skin.
____________ is/are formed partly from the secretions of glands in the external ear canal.
Mammary glands are modified ___________ glands that develop within the female breast, whereas ____________ are present in both sexes
asymmetry, border irregularity, color, and diameter
The "ABCD rule" for recognizing early signs of malignant melanoma refers to the following characteristics of the lesion
Basal cell carcinoma initially affects cells of the stratum __________, whereas malignant melanoma arises from ___________.
_____________ burns involve the epidermis, all of the dermis, and often some deeper tissue.
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