6.1 The Skin and Subcutaneous Tissues

1			The condition termed albinism results from
			A)	a reduction in blood flow through the skin.
			B)	a deficiency of glucocorticoid hormones.
			C)	high levels of bilirubin circulating in the blood.
			D)	a deficiency of melanin production.
			E)	lack of oxygen circulating in the blood.
2			The single layer of cells that make up the stratum basale of the epidermis contains all of the following cell types except
			A)	melanocytes.
			B)	keratinocytes.
			C)	Merkel cells.
			D)	fibroblasts.
3			Which of the following types of cells divides by mitosis to replace the dead cells that exfoliate from the surface of your skin?
			A)	keratinocytes
			B)	fibroblasts
			C)	Merkel cells
			D)	melanocytes
4			Which layer is responsible for fingerprints?
			A)	stratum lucidum
			B)	dermis
			C)	stratum corneum
			D)	stratum basale
5			The epidermal layer that is dead and keratinized is the
			A)	stratum basale.
			B)	stratum lucidum.
			C)	stratum granulosum.
			D)	stratum spinosum.
			E)	stratum corneum.
6			The major skin layer that normally has the greatest amount of adipocytes is the
			A)	epidermis.
			B)	papillary layer.
			C)	hypodermis.
			D)	stratum corneum.
			E)	stratum spinosum.
7			Cutaneous vasodilation is in response to
			A)	vitamin C synthesis.
			B)	cyanosis.
			C)	jaundice.
			D)	very warm conditions.
			E)	lack of sun.

6.2 Hair and Nails

8			When you walk outside barefoot, in which part of your toenail will dirt adhere and be the most difficult to remove?
			A)	the nail body
			B)	the hyponychium
			C)	lunule
			D)	the nail bed
			E)	nail matrix
9			Of the three types of hair we grow during our lives, which type is pigmented?
			A)	lanugo
			B)	terminal
			C)	vellus
			D)	keratinous
10			Fingernails grow about 1mm/week due to mitosis of cells in the
			A)	nail plate.
			B)	nail matrix.
			C)	eponychium.
			D)	hyponychium.
11			Smooth muscle bundles attached to the hair root sheath are called
			A)	epithelial roots.
			B)	hair receptors.
			C)	sebaceous glands.
			D)	arrector pili.
			E)	merocrine glands.
12			Blond hair
			A)	contains air in the medulla.
			B)	normally has a flatter shaft than brown or black hair.
			C)	has a sparse amount of melanin in the cortex.
			D)	typically lacks a cuticle.
			E)	is a result of low amount of iron in the papillae.

6.3 Cutaneous Glands

13			Which of the following statements about sweat glands is incorrect?
			A)	A milky perspiration containing fatty acids is secreted by merocrine sweat glands.
			B)	Sweat glands are simple tubular glands lined by stratified cuboidal epithelium and emptied by a duct.
			C)	Apocrine glands open onto hair follicles rather than a sweat pore.
			D)	The 500 ml of insensible perspiration that we produce each day does not produce a wetness of the skin.
14			Which of the following has an excretory function?
			A)	eccrine sweat gland
			B)	mammary glands
			C)	sebaceous gland
			D)	endocrine glands
15			The oily secretion that prevents the skin from drying and cracking is
			A)	cerumen.
			B)	pheomelanin.
			C)	sebum.
			D)	diaphoresis.
16			These skin glands protect the ear.
			A)	merocrine
			B)	ceruminous
			C)	sebaceous
			D)	apocrine
			E)	mammary

6.4 Skin Disorders

17			Which of the following is a fungus infection of the skin?
			A)	warts
			B)	ringworm
			C)	psoriasis
			D)	acne
18			Which of the following types of skin cancer is the least dangerous because it seldom metastasizes?
			A)	basal cell carcinoma
			B)	squamous cell carcinoma
			C)	malignant melanoma
			D)	Karposi sarcoma
19			In this type of burn, only the epidermis is involved.
			A)	first degree
			B)	second degree
			C)	third degree
20			Which type of skin graft is unlikely to cause an immune reaction?
			A)	allograft
			B)	isograft
			C)	xenograft
			D)	homograft