Multiple Choice Quiz

Please answer all questions


1	Macrophagic cells scattered throughout the stratum basale are the ________________.
		A)	keratinocytes
		B)	melanocytes
		C)	tactile cells
		D)	nonpigmented granular dendrocytes


2	A _____________ deficiency can lead to redness and itching of the skin.
		A)	iron
		B)	zinc
		C)	protein
		D)	vitamin B12


3	The ________________ is the epidermal skin layer that gives rise to all other layers of the epidermis.
		A)	stratum granulosum
		B)	stratum lucidum
		C)	stratum basale
		D)	stratum corneum


4	What layer is only found in the epidermis of the lips, palms, and soles?
		A)	stratum lucidum
		B)	stratum corneum
		C)	stratum spinosum
		D)	stratum granulosum


5	Which of these is not a function of the integument?
		A)	synthesis of vitamin D
		B)	thermoregulation
		C)	hydroregulation
		D)	nutrient absorption


6	What is the primary function of hair in humans?
		A)	sexual attraction
		B)	species recognition
		C)	protection
		D)	insulation


7	What causes red hair?
		A)	a lack of melanin
		B)	the pigment trichosiderin
		C)	a medium amount of melanin
		D)	air spaces within the hair shaft


8	Why are nails and hair considered epidermal derivatives?
		A)	They are both derived from invaginations of the stratum basale into the dermis.
		B)	They lie below the epidermis rather than in it.
		C)	The dermis, where nails and hair arise from, is an epidermal derivative.
		D)	The nails and hair are not epidermal derivatives.


9	The type of hair that grows continuously and is found on the scalp as well as on the faces of males is called ________________,
		A)	lanugo
		B)	angora
		C)	definitive
		D)	medullary hair


10	What portion of the nail is undergoing the most rapid cell division?
		A)	eponychium
		B)	hyponychium
		C)	nail plate
		D)	lunula


11	The odoriferous secretion of the _________________ glands is thought to function as a sexual attractant.
		A)	sebaceous
		B)	eccrine sweat
		C)	apocrine sweat
		D)	ceruminous


12	The most common type of skin cancer is _________________.
		A)	malignant melanoma
		B)	basal cell carcinoma
		C)	squamous cell carcinoma
		D)	None of these is correct.


13	What is the first step in wound healing?
		A)	fibroblasts invade the wounded area
		B)	granulation tissue is formed
		C)	a scar of collagenous fibers appears
		D)	a blood clot forms

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