Multiple ChoiceFollicles that give rise to eyebrows remain active longer than follicles of the scalp.965views1rank1comments
Multiple ChoiceTerminal hair is located in all of the following areas EXCEPT the __________.1336views
Textbook QuestionWhich of the following is not a function of body hair in humans?a. Protection from the environmentb. Sensationc. Protection from mechanical traumad. Regulation of blood flow217views
Textbook QuestionFill in the blanks: The portion of the hair that projects from the surface of the skin is the____, and the portion within the dermis is the ___, which is embedded in a(n)_____ . The portion of the hair that contains cells that undergo mitosis during the growth stage of the hair is known as the .184views
Textbook QuestionWhy don't you bleed when you cut your nails? Why don't you bleed when a hair is pulled?228views
Textbook QuestionManufacturers of shampoos and conditioners often claim their products contain vitamins that are necessary to keep hair shafts healthy. Do hair shafts need vitamins? (Hint: Vitamins are required for cells to carry out certain reactions.) Why or why not? How valid are these claims?183views
Textbook QuestionThe hair and nails are sometimes called accessory organs. Are these structures technically organs? Why or why not?187views
Textbook QuestionMultiple Choice More than one choice may apply. Which structure is not associated with a hair? a. Shaft b. Cortex c. Matrix d. Cuticle e. Lunule189views
Textbook QuestionMultiple Choice More than one choice may apply. In investigating the cause of thinning hair, which of the following questions needs to be asked? a. Is the diet deficient in proteins? b. Is the person taking megadoses of vitamin C? c. Has the person been exposed to excessive radiation? d. Has the person recently suffered severe emotional trauma?264views
Textbook QuestionAn arrector pili muscle a. is associated with each sweat gland, b. can cause a hair to stand up straight, c. enables each hair to be stretched when wet, d. provides new cells for continued growth of its associated hair.278views
Textbook QuestionThe accessory structures of the integument include the (a) blood vessels, glands, muscles, and nerves, (b) tactile discs, lamellar corpuscles, and tactile corpuscles, (c) hair, skin, and nails, (d) hair follicles, nails, sebaceous glands, and sweat glands.290views1rank
Textbook QuestionThe portion of the hair follicle where cell divisions occur is the (a) shaft, (b) matrix, (c) root hair plexus, (d) cuticle.228views
Textbook QuestionDescribe the process of hair formation, and list several factors that may influence a. growth cycles and b. hair texture.384views
Textbook QuestionTanya, a 30-year-old resident of a mental hospital, has an abnormal growth of hair on the dorsum of her right index finger. The orderly comments that she gnaws on that finger continuously. What do you think is the relationship between Tanya's gnawing activity and her hairy finger?339views
Textbook QuestionMany people change the natural appearance of their hair, either by coloring it or by altering the degree of curl in it. Which layers of the hair do you suppose are affected by the chemicals added during these procedures? Why are the effects of the procedures not permanent?230views
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