Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
A&P 1
chap 6
| Question | Answer |
|---|---|
| A parent donates part of their liver to their child who suffers from cystic fibrosis. This is an example of an__________. | allograft |
| What is the primary means of body heat loss? | Radiation |
| What is a normal response to excessive loss of body heat in a cold environment? | Dermal blood vessels constrict. |
| In healthy skin, the production of epidermal cells is closely balanced with the loss of skin cells. | True |
| If the entire epidermis were to become keratinized, skin would become incredibly hard and inflexible. | True |
| What tissue is important in conserving body heat? | The adipose tissue in the subcutaneous layer. |
| The amount of keratin produced during the formation of a hair determines its hair color | False |
| Why does exposure to ultraviolet light darken the skin? | It stimulates the synthesis of melanin. |
| Which correctly describes the thickness of the two indicated structures? | The dermis is typically thicker than the epidermis. |
| Wrinkles develop with aging. What change to the skin would cause these wrinkles to occur? | Fat is lost from the subcutaneous layer and the dermis shrinks. |
| As body temperature increases, the dermal blood vessels are triggered to__________. | dilate |
| Carlee slammed her fingers in a door. One of her fingernails is damaged near the lunula, forming a white oval at the site of the injury. As time progresses, what happens to the damaged (white) area? | The white oval will gradually move out toward the free edge of the nail and then be worn away along with neighboring normal areas of the nail. |
| What epidermal cell type responds to light touch by stimulating sensory nerve endings? | Tactile cells |
| Why does the elevated body temperature seen with a fever develop? | Because the set point for body temperature becomes elevated. |
| A core body temperature that drops below 35ºC (95ºF) is called__________. | hypothermia |
| The skin has a protective function because as keratinocytes age, and are pushed further from the dermis, they become tightly fastened together by what structure? | Desmosomes |
| Excessive collagen production during wound healing results in_________ | scar formation |
| Which is the most likely explanation for the defect in dystrophic epidermolysis bullosa, in which the skin develops blisters in response to any touch? | Collagen fibers that attach the epidermis to the dermis break down. |
| Besides the production of melanin, three factors that affect the color of skin are volume of blood in dermal vessels, presence of carotene in the subcutaneous layer, and various diseases. | True |
| Blood carrying excessive amounts of oxygen causes the skin tone called cyanosis. | False |
| What causes the redness and swelling in an area of injury or infection during the inflammatory response? | Vasodilation of blood vessels |
| Water loss from the skin is minimal because of the structure of the__________. | epidermis |
| How might merocrine (eccrine) sweat glands be described? | Secrete in response to elevated body temperature |
| Why might a pressure ulcer form? | Loss of blood supply to the skin leads to necrosis of skin cells. |
| What term describes a burn affecting only the epidermis? | Superficial partial-thickness burn |
| Melanin production is greater in the skin of people who spend most of their time outdoors than in people who do not. | True |
| Jackson has a condition in which his fibroblasts are functional, but very inefficient and produce collagen at a slow rate. He has cut himself on a broken piece of glass. What will his healing process be like? | The wound will heal very slowly. |
| What organelle serves to transfer pigment from melanocytes to nearby keratinocytes? | Melanosomes |
| What forms the shafts of hair? | Dead epidermal cells |
| The stratum granulosum is superficial to the stratum spinosum. | True |
| A patient has high blood pressure and is put on a vasodilator, which causes blood vessels to dilate, lowing blood pressure. One of the side effects will be pale, cool skin. | False |
| What is the function of the dendritic cells of the epidermis? | They are phagocytic and help in triggering an immune response to any invading microbes. |
| The superficial layer of epidermal cells are__________. | squamous |
| Aging affects the appearance of the skin, producing wrinkles and sagging due to decreased collagen and elastin formation. | True |
| When does inflammation occur? | ... |
| How do merocrine (eccrine) sweat glands differ from sebaceous glands? | Merocrine glands release a watery secretion while sebaceous glands release an oily secretion. |
| A burn that involves the only the epidermis is called a deep partial-thickness burn. | False |
| What gives a nail its hardness? | Keratin |
| When showering, a young woman loses what looks like hundreds of hairs. Even so, she should not be concerned about impending baldness. | True |
| Skin cells play an important role in producing what vitamin? | Vitamin D |
| What is the source of stem cells within a hair follicle? | Hair bulge |
| Melanocytes synthesize melanin, which protects underlying cells from the effects of ultraviolet light. | True |
| Where is the control center for the homeostatic mechanism that maintains body temperature? | In the hypothalamus |
| When treating an extensive burn, what type of graft involves using undamaged skin from another area of the body to repair the burn? | Autograft |
| What type of glands secrete breast milk and ear wax? | Modified apocrine sweat glands |
| A second-degree burn is the same as a full-thickness burn. | False |
| Exposure to ultraviolet radiation greatly increases the risk of developing__________. | skin cancer |
| What cell type produces the nail plates? | Specialized epithelial cells |
| Epidermis is composed of__________, whereas dermis is composed of__________. | stratified squamous epithelial tissue; dense irregular connective tissue |
| The skin is one of the largest organs by weight in the body. | True |
| Structures including a bulb, a bulge, and a papilla are all associated with what skin structure? | Hair follicle |
| What causes the redness and swelling in an area of injury or infection during the inflammatory response? | Vasodilation of blood vessels |
| Which of the following describes a feature of the epidermis? | It lacks blood vessels. |
| What cell in the epidermis can initiate the immune response? | Dendritic cell |
| In the genetic disease called ichthyosis, the skin is rough, brown, and scaly because the uppermost layer cannot peel off as easily as it should. What layer of the skin is affected in this disorder? | Epidermis |
| Why might a pressure ulcer form? | Loss of blood supply to the skin leads to necrosis of skin cells. |
| Melanocytes can transfer granules of melanin into nearby epithelial cells. | True |
| During a coronary bypass surgery, a blood vessel from the patient's leg was removed and used to bypass a blockage in a major artery in their heart. This is an example of what kind of graft? | Autograft |
| When treating an extensive burn, what type of graft involves using undamaged skin from another area of the body to repair the burn? | Autograft |
| Katy nervous, she doesn't adjust the needle depth setting on the tattoo machine properly. the ink is only deposited into the dermis in some spots, while much of it is deposited into the lower layers of the epidermis. What will happen to the tattoo? | In about a month or so, the ink deposited into the epidermis will be gone. |
Created by:
Bbuck1
Popular Anatomy sets