Chapter 4 Homework
Which of these statements describes the papillary layer of the skin?
Dermal papillae contain capillary loops to nourish the epidermis.
Which of the following is an indication of melanoma?
a pigmented spot that contains areas of different colors
Which type of skin cancer is the least malignant but most common?
basal cell carcinoma
The outermost layer of the epidermis is keratinized and known as stratum ________.
corneum
Mountain climbers frequently experience a bluing of the skin at elevations above 2,500 meters. This bluing of the skin is known as __________.
cyanosis
What condition occurs when hemoglobin is deprived of oxygen?
cyanosis
What type of cutaneous gland produces sweat that cools the body upon evaporation from the skin?
eccrine gland
Which glands play a role in thermoregulation?
eccrine glands
The two main layers of skin are ________.
epidermis and dermis
What type of burn only involves injury to the superficial epidermis?
first
When James shaves his face, which portion of the hair is removed?
hair shaft
The skin and its derivatives (nails, glands, and hairs) form the ________.
integumentary system
Which of the following abnormal skin colors results from liver disorders?
jaundice
Hair color is due to a pigment known as ________.
melanin
Which of the following are pigments that contribute to skin color?
melanin; carotene; hemoglobin
Which type of skin cancer the least common but is the cause of most skin-cancer-related deaths?
melanoma
Fingerprints and footprints in the epidermis are created by dermal papillae present in the ________.
papillary layer of the dermis
A nurse tends to a patient with a sunburn. Upon examination, she sees blisters and red skin. What type of burn does the patient most likely have?
second-degree burn
What type of membrane provides lubrication to the pleural, pericardial, and peritoneal cavities?
serous membrane
What layer is affected when a scrape affects the most superficial epidermal layer?
stratum corneum
Which layer of the epidermis is composed of flattened, dead, keratin-filled cells?
stratum corneum
What epidermal layer consists of multiple layers of living keratinocytes and scattered dendritic cells?
stratum spinosum
The ________ membrane lines the fibrous capsule surrounding joints.
synovial
Which vitamin is synthesized by the skin?
vitamin D
What type of burn damages the skin so severely that regeneration of the damaged tissue is NOT possible?
third-degree