chapter 5 integumentary system

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 Vitamin C production

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. 27%

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. Epithelial; connective

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. Involves only the epidermis

Which of the following is not true of the epidermis? A. It resists abrasion and reduces water loss B. it is keratinized squamous epithelium C. It has many blood vessels and nerves D. It has five strata of cells

C. It has many blood vessels and nerves

Fetal hair is called ______. A. Lunula B. Vellus Hair C. Lanugo D. Terminal hair

C. Lanugo

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. May cause scarrring

The nail is produced by the ______. A. Nail root B. Eponychium C. Nail matrix D. Nail body

C. Nail matrix

What is the function of the melanin besides providing pigmentation? A. Water-proofing B. Antibacterial C. Protection from UV rays D. Antifungal

C. Protection from UV rays

Having 25 or more layers of dead squamous cells with a hard protein envelope, keratin and surrounded by lipids is characteristic of _____. A. Stratum lucidum B, Stratum basale C. stratum corneum D. stratum granulosum E. stratum spinosum.

C. Stratum Corneum

What connects the skin to underlying muscle or bone? A. Dermis B. Epidermis C. Subcutaneous tissue D. Integument

C. Subcutaneous tissue

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 salty, watery sweat

C. They open into hair follicles

The most common type of skin cancer is ____. A. squamous cell carcinoma B. actinic keratosis C. basal cell carcinoma D. melanoma

C. basal cell carcinoma

Which of the following does NOT describe melanoma? A. asymmetric B. border irregularity C. color uniformity D. diameter great than 6mm E. evolving lesions

C. color uniformity

Which of the following is NOT a protective function of the skin? A. prevents entry of microorganisms B. excretion of wastes C. a heat insulator D. protection from abrasion

C. heat insulator

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. helps control body temperature

Which of the following is NOT true of third-degree burns? A. scarring occurs and skin grafts are often needed B. involves both the epidermis, dermis, and deeper tissue layers C. Is very painful D. Appears white, tan, black, or deep cherry red in color

C. is very painful

Which of the following is NOT a function of the skin? A. sensation B. Vitamin D production C. temperature regulation D. excretion E. All of the choices are functions of the skin

E. all of the choices are functions of the skin

Which is the correct sequence of the strata of the epidermis from deep to superficial?

Stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, stratum corneum

The most common type of skin cancer is _______. A. Melanoma B. Basal cell carcinoma C. Squamous cell carcinoma D. Kaposi"s carcinomoa

B. Basal cell carcinoma

What is needed for the production of Vitamin D? A. A cholesterol molecule and sunlight B. sunlight and calcium C. A cholesterol molecule and fish oil D. Milk and fish oil

A. A cholesterol molecule and sunlight

Which of the following does NOT affect melanin production? A. Blood flow through the skin B. Exposure to UV light C. genetics D. hormones

A. Blood flow through the skin

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. Dermal arterioles dilate and sweat increases

What material gives the epidermis the ability to resist abrasion and reduce water loss? A. keratin B. melanin C. carotene D. dermal Papillae

A. Keratin

Melanin is produced by cells called_____. A. Melanocytes B. Keratinocytes C. Adipocyte D. Langerhans cells

A. Melanocytes

The top layer of the dermis is the _____. A. Papillary layer B. Basal layer C. Reticular layer D. Dermal Layer

A. Papillary layer

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. Sebaceous glands

What is the main component of the dermis? A. collagen B. elastin C. epithelium D. adipose tissue

A. collagen

A skin indication of impaired respiratory or circulatory function is ____. A. cyanosis B. jaundice C. pink-red rash D. spoon shaped nails

A. cyanosis

A third-degree burn of 2-10% BSA or a second-degree burn of 15-25% BSA is a _______ burn. A. moderate B. monor C. major D. slight

A. moderate

Having several layers of dead cells with indistinct boundaries and found only in the thick skin is characteristic of the ______. A. Stratum lucidum B, Stratum basale C. stratum corneum D. stratum granulosum E. stratum spinosum.

A. stratum lucidium

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. Arrector pili muscle

Where would a ceruminous gland be found? A. Axillae B. Ear canal C. Forehead D. Palms

B. Ear canal

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. Epidermis and dermis

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. Improve grip and increase friction

Which epidermal cell is correctly matched with its function? A. langerhans cells-detects light touch B. keratinocytes - produces keratin for water-proofing C. merkel cells - produces melanin for pigmentation D. melanocytes - immune cells

B. Keratinocytes - produces keratin for water-proofing

A portion of the nail matrix that is seen through the nail body is ______. A. Cuticle B. Lunula C. Nail fold D. Eponychium

B. Lunula

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. Merkel cells

The part of the hair that is above the surface of the skin is the ____. A. Cuticle B. Shaft C. Root D. hair bulb

B. Shaft

Having a single layer of cuboidal or columnar cells that undergo mitosis is characteristic of the_______. A. stratum lucidum B. Stratum basale C. stratum corneum D. stratum spinosum E. stratum granulosum

B. Stratum Basale

Squamous cell carcinoma arises from cells of the _______. A. Stratum basal B. Stratum Spinosum C. Stratum granulosum D. Stratum Corneum

B. Stratum Spinosum

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. Vitamin D production

What is the main constituent of the subcutaneous layer? A. collagen B. adipose tissue C. striae D. smooth muscle

B. adipose tissue

What muscle attaches to the hair follicle and causes the hair to stand on end when it contracts? A. follicular muscle B. arrector pili muscle C. sebaceous muscle D. papillary muscle

B. arrector pili muscle

Which of the following does NOT occur when body temperature increases? A. sweat production increases B. dermal blood vessels constrict C. dermal blood vessels dilate D. All of the choices occur

B. dermal blood vessels constrict

Which of the following is the middle layer of a hair? A. cortex B. medulla C. cuticle D. root sheathe

B. medulla

Which of the following is Not a function of the integumentary system? A. protection and sensation B. temperature regulation and Vitamin A production C. excretion and sensation D. temperature regulation and protection

B. temperature regulation and Vitamin A production

What is the correct order of the strata of the epidermis from deep to superficial?

Basale, spinosum, granulosum, lucidum, corneum

Which type of skin gland secretes sebum? A. ceruminous B. mammory C. sebaceous D. merocrine

C. sebaceous

A burn that is into the dermis and causes redness, pain, edema, and blisters would be a ______ burn. A. Third-degree B. first-degree C. second-degree D. full-thickness

C. second-degree

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. stimulates calcium uptake from the intestines

In males, 90% of their body hair is _____. A. vellus hair B. lanugo C. Terminal hair D. cortical hair

C. terminal hair

The hypodermic is mostly_______. A. Protein B. Collagen C. Glycogen D. Adipose tissue

D. Adipose tissue

The congenital absence of melanin is called_____. A. Erythema B. Cyanosis C. Mask of pregnancy D. Albanism

D. Albinism

Skin color is determined by the genetic factors affecting_____. A. The amount of melanin produced B. the types of melanin produced C. size, number, and distribution of melanosomes D. all of the choices are correct

D. All of the choices are correct

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. All of the choices are correct

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. Genetics that determines the amount of melanin produced

What is the structure of the epidermis? A. dense irregular collagenous connective tissue B. simple squamous epithelium C. adipose connective tissue D. keratinized stratified squamous epithelium

D. Keratinized stratified squamous epithelium

Which type of skin gland is very important in body temperature regulation? A. ceruminous B. apocrine sweat glands C. sebaceous D. Merocrine sweat glands

D. Merocrine sweat glands

The visible part of the nail is the _____. A. Nail root B. Eponychium C. Nail matrix D. Nail body

D. Nail body

The dermal projection into the hair bulb that provides nutrition to the matrix is called the_____. A. Medulla B. Cortes C. Cuticle D. Papilla

D. Papilla

Which of the following is NOT part of the hair shaft? A. Medulla B. Cortex C. Cuticle D. Papilla

D. Papilla

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. They are active from birth

Most skin cancers result from _____. A. Chemicals B. Genetics C. X-rays D. UV radiation

D. UV radiation

Temporary changes in skin color can be caused by_____. A. increased blood flow through the skin B. eating too many carrots C. decreased blood oxygen content D. all of the choices are correct

D. all of the choices are correct

Which of the following is not a component of the integumentary system? A. Hair and nails B. Glands C. Skin D. Fat

D. fat

The undifferentiated epithelial cells that produce hair are called the _____. A. papilla B. medulla C. hair bulb D. matrix

D. matrix

What type of skin cancer is most deadly and may involve moles? A. squamous cell carcinoma B. actinic keratosis C. basal cell carcinoma D. melanoma

D. melanoma

The layer of the dermis that produces the fingerprints is the the______. A. dermal layer B. reticular layer C. basal layer D. papillary layer

D. papillary layer

Cells that form from the nail come from the_____. A. stratum corneum B. eponychium C. papillary layer D. stratum basale

D. stratum basale

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. stratum granulosum

Which of the following is/are an effect of aging on the integumentary system? A. Epidermis thins and collagen thins in the dermis B. skin sags and wrinkles due to fat loss C. skin becomes drier due to decreased sebum D. hair turns white or gray due to decreased melanin E. All of the choices are effects of aging

E. All of the choices are effects of aging

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. Stratum spinosum