Chapter 5 Flashcards
Why does your skin remain red after a bad sunburn?
Inflammation causes increased blood flow.
Why would a third-degree burn be less painful than a first- or second-degree burn involving the same body area?
destruction of underlying pain receptors
Which layer is composed primarily of dense irregular connective tissue?
Reticular Layer (dermis)
The skin is permeable to organic solvents, such as acetone or paint thinner, because they ________.
can dissolve the lipid bilayers of epidermal and dermal cell plasma membranes
The source of the fluid that accumulates in a blister is ________.
the plasma of the blood flowing through the numerous dermal blood vessels
A Caucasian patient with pale skin is treated for low blood pressure with medication that elevates the blood pressure; however, the skin’s pallor does not change. Which of the following is the most likely cause of the pallor in this patient?
Anemia
Overactive sebaceous glands can cause…
seborrhea, a disease characterized by red, itchy lesions on the scalp.
Which stratum of the epidermis contains the stem cells responsible for regenerating the more superficial layers?
stratum basale
Which type of cell or cellular structure is not found in the epidermis?
Pain receptors
Which skin pigment is made in the skin as a natural defense against UV radiation?
melanin
Which glands secrete an oily product that softens the skin and hair?
Sebaceous
If a person were born without eccrine glands, what skin function would he or she have a hard time completing?
Thermoregulation
Which of the following is a metabolic function of skin?
synthesis of a vitamin D precursor
Which skin function is not correctly matched with the structure that accounts for that function?
apocrine gland: thermoregulation
Susan sat out in the sun watching a baseball game. She developed small blisters on her unprotected shoulders and neck. What type of burn is represented by the formation of the blisters?
Second-degree
