Solved
Average time of hair, reappearance after tweezing or waxing:
Deep, coarse, bulbous terminal hair (as on chins) Correct Ans-5 to 6 weeks
Average time of hair, reappearance after tweezing or waxing:
Medium depth, terminal hair (as on side of face and body) Correct Ans-6 to 7 weeks
Average time of hair, reappearance after tweezing or waxing:
Medium depth intermediate or accelerated vellus hair Correct Ans-7 to 9 weeks
Average time of hair, reappearance after tweezing or waxing:
Shallow vellus hair (downy, general face) Correct Ans-8 to 10 weeks*
Ultraviolet rays from sunlight react with the amino acid ____________ found in the
melanocytes and produce melanin Correct Ans-tyrosine
Generally, people of different races have approximately the same number of ______________.
,People with dark skin have melanocytes that are more _________ and produce more melanin.
Correct Ans-melanocytes
active
The follicle _________ to about a third of its anagen size. Correct Ans-shrinks
The ________ plays a viral role in maintaining the body's temperature and homeostasis.
Correct Ans-skin
_________________ are dendritic cells in the epidermis that have an immunologic function
Correct Ans-Langerhans cells
Langerhan cells are identical to ________ ________________ and present antigens to
lymphocytes with which they interact via specific surface receptors. Correct Ans-tissue
macrophages
The interface between the epidermis and dermis is called Correct Ans-Basement membrane
zone (BMZ)
Electron microscopic examination reveals 3 layers: Correct Ans-1. lamina lucida
2. basal lamina
3. anchoring fibrils
, Lamina lucida Correct Ans-relatively lucid zone transversed by delicate anchoring filaments
that connect the cell membrane of the basal cell with the basal lamina
Basal lamina Correct Ans-the basal lamina an electron- dense zone composed primarily of
type IV collagen derived from epidermal cells and anchoring fibrils
Anchoring fibrils Correct Ans-which are thick fibrous strands, composed primarily of type VII
collagen, that complete the connection with the dermis
The BMZ Correct Ans-serves as the "glue" between the epidermis and dermis and is the site
of blister formation in a number of diseases.
It appears that there are two areas of target: Correct Ans-the bulge and the bulb
The matrix and papilla house the Correct Ans-bulge and the bulb
The total number of follicles is approximately _________ in men and women, and appears to be
the same in all races. Correct Ans-equal
It is the activity of the ____ _______, rather than their number which determines the amount of
growing hair. Correct Ans-hair follicles