Anatomy Chapter 5
What material gives the epidermis the ability to resist abrasion and reduce water loss? A. Keratin B. Melanin C. Carotene D. Dermal papillae
A
The epidermis is made of _______ tissue, while the dermis is made of _____ tissue. A. Connective; connective B. Connective; epithelial C. Epithelial; connective D. Epithelial; epithelial
C
The nail is produced by the A. Nail root B. Eponychium C. Nail matrix D. Nail body
C
What connects the skin to underlying muscle or bone? A. Dermis B. Epidermis C. Subcutaneous tissue D. Integument
C
What is the correct order of organs in the production of vitamin D? A. Liver, kidneys, skin B. Kidneys, skin, liver C. Skin, liver, kidneys D. Skin, kidneys, liver
C
What is the function of melanin besides providing skin pigmentation? A. Water-proofing B. Antibacterial C. Protection from ultraviolet rays D. Antifungal
C
What is the purpose of vitamin D in the body? A. Prevents colds B. Helps heal injuries C. Stimulates calcium uptake from the intestines D. Stimulates production of "good" cholesterol
C
What may cyanosis of the skin indicate? A. Liver damage B. Bacterial infection C. Impaired circulation or respiration D. Iron-deficiency
C
Which of the following is NOT a characteristic of a first-degree burn? A. Involves only the epidermis B. Are red and painful C. May cause scarring D. May have some edema
C
Which of the following is NOT a function of the integumentary system? A. Excretion B. Temperature regulation C. Vitamin C production D. Protection E. Sensation
C
Which of the following is NOT a protective function of the integumentary system? A. Intact skin reduces water loss B. Skin protects underlying tissues from abrasion C. Helps control body temperature D. Intact skin prevents entry of microorganisms
C
Which of the following is NOT true concerning merocrine sweat glands? A. They are simple, coiled tubular glands B. They are found all over the body, especially in the palms and soles C. They open into hair follicles D. They produce a salty, watery sweat
C
Which of the following is NOT true of second-degree burns? A. May cause scarring B. Blistering occurs C. Involves only the epidermis D. Considered a partial-thickness burn
C
Which of the following is NOT true of the epidermis? A. It resists abrasion and reduces water loss B. It is keratinized stratified squamous epithelium C. It has many blood vessels and nerves D. It has five strata of cells
C
Which type of ultraviolet radiation is the most potent cause of sunburn, basal cell and squamous cell carcinomas and melanoma? A. UV-D B. UV-C C. UV-B D. UV-A
C
Having several layers of dead cells with indistinct boundaries and found only in thick skin is characteristic of the A. Stratum lucidum B. Stratum basale C. Stratum corneum D. Stratum granulosum E. Stratum spinosus
A
Melanin is produced by cells called A. Melanocytes B. Keratinocytes C. Adipocyte D. Langerhans cells
A
The ABCDE rule aids in early detection of A. Melanoma B. Basal cell carcinoma C. Squamous cell carcinoma D. Kaposi's sarcoma
A
The top layer of the dermis is the A. Papillary layer B. Basal layer C. Reticular layer D. Dermal layer
A
A portion of the nail matrix that is seen through the nail body is the A. Cuticle B. Lunula C. Nail fold D. Eponychium
B
What occurs in the skin when body temperature increases that helps in temperature homeostasis? A. Dermal arterioles dilate and sweat increases B. Dermal arterioles constrict and sweat decreases C. Epidermal arterioles dilate and sweat increases D. Epidermal arterioles constrict and sweat increases
A
What type of alveolar glands are associated with hair follicles? A. Sebaceous glands B. Merocrine sweat glands C. Apocrine sweat glands D. Ceruminous glands
A
Which of the following does NOT affect melanin production? A. Blood flow through the skin B. Exposure to ultraviolet light C. Genetics D. Hormones
A
Which of the following is NOT how the hair provides protection? A. Protects from ultraviolet light B. Hair on head is a heat insulator C. Eyebrows keep sweat out of eyes D. Hair in nose prevents dust from entering the respiratory tract
A
How do keratinocytes obtain melanin? A. Produce it through protein synthesis B. Phagocytize tips of melanocytes to obtain melanosomes C. By diffusion from melanocytes D. By active transport from melanocytes
B
How does the skin aid in communication, integration and control of the body? A. Produces vitamin D B. Has receptors for touch, pressure, temperature and pain C. Excretion of wastes D. None of the choices is correct
B
Short, fine, generally unpigmented body hair is called A. Lunula B. Vellus hair C. Lanugo D. Terminal hair
B
The main purpose of the dermal papillae is to A. Give fingerprints B. Improve grip and increase friction C. Give skin coloration D. Provide insulation
B
The most common type of skin cancer is A. Melanoma B. Basal cell carcinoma C. Squamous cell carcinoma D. Kaposi's sarcoma
B
The part of a hair that is above the surface of the skin is the A. Cuticle B. Shaft C. Root D. Hair bulb
B
The skin is made up of the A. Dermis and hypodermis B. Epidermis and dermis C. Epidermis and subcutaneous layer D. Hypodermis and subcutaneous layer
B
What is the name of the skin muscle that causes hair to stand on end? A. Hair follicle muscle B. Arrector pili muscle C. Dermal muscle D. Cutaneous appendage muscle
B
What structures of the epidermis are responsible for detecting light touch and superficial pressure? A. Langerhans cells B. Merkel cells C. Keratinocytes D. Cornified cells
B
Where would a ceruminous gland be found? A. Axillae B. Ear canal C. Forehead D. Palms
B
Which of the following is NOT a function of the subcutaneous tissue? A. Source of energy B. Vitamin D production C. Insulation D. Padding
B
A burn that covers the entire left arm, the left anterior trunk and the anterior of the left leg would cover _____ of the body surface area of an adult. A. 36% B. 24% C. 27% D. 31%
C
Fetal hair is called A. Lunula B. Vellus hair C. Lanugo D. Terminal hair
C
Having 25 or more layers of dead squamous cells with a hard protein envelop, keratin and surrounded by lipids is characteristic of the A. Stratum lucidum B. Stratum basale C. Stratum corneum D. Stratum granulosum E. Stratum spinosus
C
Many times an actinic keratosis can progress to A. Melanoma B. Basal cell carcinoma C. Squamous cell carcinoma D. Kaposi's sarcoma
C
Having 2 - 5 layers of diamond-shaped cells containing protein granules of keratohyalin that die in the upper layer is characteristic of the A. Stratum lucidum B. Stratum basale C. Stratum corneum D. Stratum granulosum E. Stratum spinosum
D
Most skin cancers result from A. Chemicals B. Genetics C. X-rays D. Ultraviolet radiation
D
The congenital absence of melanin is called A. Erythema B. Cyanosis C. Mask of pregnancy D. Albinism
D
The dermal projection into the hair bulb that provides nutrition to the matrix is called the A. Medulla B. Cortex C. Cuticle D. Papilla
D
The hypodermis is mostly A. Protein B. Collagen C. Glycogen D. Adipose tissue
D
The primary factor that determines skin color is A. Sun exposure B. Thickness of the stratum corneum C. Blood circulation in the skin D. Genetics that determines the amount of melanin produced
D
Which of the following can cause a temporary change in skin coloration? A. Blood flow through the skin B. Oxygenation of the blood C. Eating too many carrots D. All of the choices are correct
D
Which of the following is NOT a component of the integumentary system? A. Hair and nails B. Glands C. Skin D. Fat
D
Which of the following is NOT true concerning apocrine sweat glands? A. They produce a thick organic secretion B. They open into hair follicles in the axillae and genitalia C. They are simple, coiled tubular glands D. They are active from birth
D
Which part of the ABCDE rule is NOT correctly matched with its meaning? A. A - asymmetry B. B - border irregularity C. C - color nonuniform D. D - dead cells E. E - evolving or changing
D
Having 8 - 10 layers of cells filled with keratin fibers and lamellar bodies is characteristic of the A. Stratum lucidum B. Stratum basale C. Stratum corneum D. Stratum granulosum E. Stratum spinosum
E