Most of these questions come straight from the book
Which layer of the skin--dermis or epidermis--is better nourished?
While walking barefoot in a barn, Jeremy stepped on a rusty nail that penetrated the epidermis on the sole of his foot. Name the layers the nail pierced from the superficial skin surface to the junction with the dermis.
The stratum basale is also called the stratum germinativum, a name that refers to its major function. What is that function?
Why are the desmosomes connecting the keratinocytes so important?
Which layer of the dermis responsible for producing fingerprint patterns?
Which tissue of the hypodermis makes it a good shock absorber?
You have just gotten a paper cut. It is very painful, but it doesn't bleed. Has the cut penetrated into the dermis or just the epidermis?
Melanin and carotene are two pigments that contribute to skin color. What is the third and where is it found?
What is cyanosis and what does it indicate?
Which alteration in skin color may indicate a liver diorder?
What are the concentric regions of a hair shaft, from the outside in?
What is the role of an arrector pili muscle?
What is the function of the hair papilla?
Why is the lunule of a nail white instead of pink like the rest of the nail?
Why are nails so hard?
Which cutaneous glands are associated with hair follicles?
When Anthony returned home from a run in 85ºF weather, his face was dripping with sweat. Why?
What is the difference between heat-induced sweating and a "cold-sweat", and which variety of sweat gland is involved?
Heat-induced sweating occurs all over the body when we are overheated. A cold sweat is emotionally induced sweating that begins on the palms, soles, and armpits and then spreads to other body areas. Both types of sweating are produced by the eccrine sweat glands, but activity of apocrine sweat glands is also likely during a cold sweat.
Sebaceous glands are not found in thick skin. Why is their absence in those body regions desirable?
What chemicals produced in the skin help provide barriers to bacteria?
The low pH of skin secretions (acid mantle) inhibits division of bacteria, and many bacteria are killed by dermcidin in sweat, bactericidal substances in sebum, or natural antibiotics called defensins produced by skin cells. Damaged skin secretes cathelicidins that are effective against a certain strain of strep bacteria.
Which epidermal cells play a role in body immunity?
How is sunlight important to bone health?
When blood vessels in the dermis constrict or dilate to help maintain body temperature, which type of muscle tissue that you learned about (in Chapter 4) acts as the effector that causes blood vessel dilation or constriction?
Which type of skin cancer develops from the youngest epidermal cells?
What name is given to the rule for recognizing hte signs of melanoma?
The healing of burns and epidermal regeneration is usually uneventful unless the burn is a third-degree burn. What accounts for this difference?
Although the anterior head and face represent only a small percentage of the body surface, burns to this area are often more serious than those to the body trunk. Why?
Skin surface markings that reflect points of tight dermal attachment to underlying tissues are called
The product of this type of sweat gland includes protein and lipid substances that become odoriferous as a result of bacterial action.
Dogs track the scent of epithelial cells that are constantly being shed. These cells shed from which stratum?