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Integumentary Practice Test Questions:
Terms in this set (77)
Which layer of the epidermis would be found in fingertips, palms, and the soles of the feet?
In which layer are 10-25% of the cells melanocytes, a cell that is prone to cancer in the form of melanoma?
What is not a function of hair?
A luxuriant source of warmth
Keratinocytes are connected by desmosomes, especially in the stratum spinosum. Recall the function of desmosomes.
Desmosomes serve as anchoring junctions—mechanical couplings scattered like rivets along the sides of adjacent cells to prevent their separation.
True or False: Skin does not have a role in regulating body temperature.
Which of the following structures are primarily responsible for fingerprints?
Friction ridges and sweat pores
What is the function of epidermal cell: Keratinocytes?
Produce a tough fibrous protein that gives the epidermis most of its protective qualities
Which of the following epidermal components possesses a waterproofing glycolipid that functions in preventing water loss?
One main difference between thin skin and thick skin is that __________.
in thin skin, the stratum lucidum appears to be absent
What is the function of Dendritic (Langerhans) cells?
Activate the immune system
Match the following skin function with the mechanism that accomplishes it: Protection
Provides a chemical barrier and a physical barrier to ward off bacterial invasion and to provide "waterproofing"
Match the following skin strata with its description: Stratum spinosum
Several cell layers thick, with intermediate filaments, keratinocytes and dendritic (Langerhans) cells
An injection is administered through the skin using a hypodermic needle. Identify the first integumentary structure through which the needle will pass.
Match the following epidermal cell type with its function: Merkel cells
Sensory receptors for touch
Match the following skin strata with its description: Stratum granulosum
One to five layers of flattened keratinocytes with keratohyaline and lamellated granules
The epidermis is composed of which of the following tissues?
Keratinized stratified squamous epithelial tissue
Match the following skin strata with its description: Stratum corneum
Many cell layers of dead keratinocytes filled with keratin (outermost epidermal layer)
Which of the following lists the layers of the epidermis in thick skin in the correct order from deep to superficial?
Stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, stratum corneum
The most common (and least malignant) type of cancer arises in which layer of the epidermis?
Match the following epidermal cell type with its function: Melanocytes
Responsible for skin pigmentation
Which of the following cells function as sensory receptors for touch?
Match the following skin strata with its description: Stratum lucidum
A thin, translucent band consisting of a two to three rows of clear, flat, dead, keratinocytes
Match the following cells with their function: Keratinocytes
Make a fibrous protein for skin protection
Match the following skin strata with its description: Stratum basale
Single row of cells mainly composed of keratinocyte stem cells.
Which of the following cells would one not expect to find in the dermis?
The dermis is primarily composed of which tissue type?
Dense irregular connective tissue
Match the following change in skin color with its associated clinical signs of disease: Cyanosis
Possible heart failure; possible respiratory disorders
Match the following condition with its description: Eczema
Skin rashes resulting from allergic reactions
A sunburn is generally classified as being __________.
a first-degree burn
Match the following structure with its primary tissue type: Papillary layer of the dermis
Areolar connective tissue
Which of the following is not strictly a component of the integumentary system?
The region ______ to the skin is the hypodermis
Match the following changes in skin color with their associated clinical signs of disease: Redness or erythema
Fever, hypertension, inflammation, allergy
What is the primary function of melanin?
To provide protection against the sun's UV rays
Match the following part with its function: Hypodermis
Match the following condition with its description: Psoriasis
Autoimmune condition, resulting in an over proliferation of the epidermis, characterized by reddened epidermal papules covered with dry, silvery scales
Match the following pigment with its associated skin color: Carotene
Yellow to orange
Which of the following layers of the skin relies on capillaries in the underlying connective tissue for its nutrients?
Which of the following is most important in determining skin coloration?
Match the following pigment with its associated skin color: Hemoglobin
Match the following structure with its primary tissue type: Hypodermis
Adipose connective tissue
Match the following change in skin color with its associated clinical signs of disease: Bronzing
Addison's disease; hypofunction of adrenal cortex
Match the following structure with its primary tissue type: Reticular layer of the dermis
Dense irregular connective tissue
A hematoma in the skin appears as __________.
black and blue marks
Melanoma is particularly dangerous because __________.
it grows rapidly and metastasizes
Match the following skin function with the mechanism that accomplishes it: Rising body temperature regulation
Dilation of blood vessels and secretion of sweat that evaporates from body surface
What is not true concerning sun exposure?
It temporarily stimulates the immune system.
Match the following component of the ABCDE rule for recognizing melanoma with its description: Evolution
Changes with time
Match the following component of the ABCDE rule for recognizing melanoma with its description: Border irregularity
Pigmented spot possesses notches and indentations
Match the following type of burns with its description: Third-degree burn
Entire thickness of the skin is consumed, resulting in the burned area appearing white, red, or blackened
Which of the following is the most immediate threat to life from a serious burn?
Loss of body fluids
Match the following skin functions with the mechanism that accomplishes them: Metabolic functions
Synthesis of vitamin D; destruction of cancer-causing chemicals; activation of some steroid hormones
What is not a function of the skin?
Respiratory gas exchange
Match the following type of burns with its description: First-degree burn
Damage to only the epidermis that results in redness, swelling, and pain
Match the following cells with their function: Tactile cells
Match the following component of the ABCDE rule for recognizing melanoma with its description: Diameter
Larger than 6 mm
Match the following type of burns with its description: Second-degree burn
Injury to the epidermis and the superficial region of the dermis resulting in redness, swelling, pain, and blisters
Match the following form of skin cancer with its description: Melanoma
The "most dangerous form" of skin cancer because it is highly metastatic; can originate wherever there is pigment, but often arises from existing moles, metastasizing rapidly into surrounding circulatory vessels
What type of mole or pigmented spot on the skin would be the most concerning?
A spot with varying colors and irregular borders.
Match the following skin functions with the mechanism that accomplishes it: Blood reservoir
Potential to hold about 5% of the body's blood volume in numerous blood vessels
Skin appendages like hair and hair follicles, nails, sweat glands, and sebaceous (oil) glands each plays a unique role in which of the following?
Which of the following is not considered a critical burn?
First-degree burns on 30% of the body
True or False:
Keratin protects the skin from the damaging effects of ultraviolet (UV) radiation.
The role of ceruminous glands is to __________.
If an individual were unable to produce sebum, what problem would he or she most likely develop?
He or she would have brittle, more easily broken hair.
Apocrine sweat glands __________.
begin functioning puberty
If dermal papillae were missing, then __________.
friction ridges would be absent
Sebaceous glands are located in all of the following areas EXCEPT the __________.
palms and sole
Terminal hair is located in all of the following areas EXCEPT the __________.
body hair of females
Which integumentary gland is believed to function as a sexual scent gland?
apocrine sudoriferous gland
What is the only pigment synthesized in the skin?
Which of the following statements is NOT true of apocrine sweat glands and sebaceous glands?
They are both widely distributed over most of the body.
Which of the following thick skin strata is the thickest?
Skin eruption produced by dilated small blood vessels of the face, especially on the nose and cheeks, is descriptive of which skin disorder?
Which of the following layers of skin is avascular and relies on capillaries in the underlying connective tissue to provide nutrients?
Keratinocytes in the stratum spinosum are known as __________.
What type of skin cancer affects cells of the stratum spinosum?
squamous cell carcinoma
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