anatomy ch 4 test
T/F Synovial membranes occurs in pairs with a parietal and visceral layer.
False
staphylococcus bacterial infection causing water-filled lesions, commonly around the mouth and nose
Impetigo
cancer of the melanocytes
Malignant melanoma
The two main layers of the skin are ______________.
epidermis and dermis
The sebaceous and sweat glands associated with skin are classified as ______________ glands because they release secretions to the skin's surface via ducts.
exocrine
As we age, the amount of collagen in skin decreases and the amount of elastic fibers increases.
false
Hair growth begins from a small cap- shaped cluster of cells called the hair follicle.
false
T/F Collagen fand elastic fibers are common in the epidermis of the skin.
false
T/F Joe just burned his hand on a hot pot. A blister forms and the burns is painful; Joe's burn would best be described as a third-degree, or full thickness burn.
false
T/F The epidermis is made mostly of dense (fibrous) connective tissue.
false
T/F The reason that the nail bed papers pink is the presence of a large number of melanocytes in the underlying dermis.
false
T/F When an individual is exposed to extremely low air temperature, the capillaries of the skin will dilate so that blood will flush into skin capillary beds and heat radiates.
false
T/F blister from burned hand is a 3rd degree burn
false
The skin is an appendage of the integumentary system.
false
Tinea pedis is the cause of warts.
false
What type of burn only involves injury to the superficial epidermis?
first degree
burn in which only the epidermis becomes red and swollen
first degree burn
Where does hair growth occur?
hair matrix
The cap-shaped cluster of cells from which hair growth begins
hair papilla
The visible part of the hair is called the:
hair shaft
When James shaves his face, which portion of the hair is removed?
hair shaft
part of the hair visible above the skin
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
a tough protein that fills the outermost layer of skin cells
keratin
cells commonly found in the epidermis that produces keratin
keratinocyte
Where are mucous membranes found?
lining the inside of the stomach
The white crescent- shaped area at the base of the nail
lunula
Hair color is due to pigment known as ________________.
melanin
The "tanning" effect (darkening of the skin) that occurs when a person is exposed to the sun is due to the increase presence of _________________.
melanin
which of the following are pigments that contribute to skin color
melanin, carotene, hemoglobin
cell that produces a pigment known as melanin
melanocyte
Which of the following membranes lines body cavities that are open to the exterior?
mucous
the layer of epithelial tissue under the nail
nail bed
Fingerprints and footprints in the epidermis are created by dermal papillae present in the _________________.
papillary layer of dermis
The membrane lining the interior of the abdominal cavity is called the:
parietal peritoneum
The membrane lining the interior of the thoracic cavity is called the:
parietal pleura
Which of the following contains chemicals that kill bacteria and prevent bacterial invasions of the skin
sebum
Which of the following is lubricant that keeps skin soft and moist and also contains chemicals that kill bacteria?
sebum
A burn involving both the epidermis and the upper layers of the dermis is called:
second degree burn
the pleura and pericardium are examples of _______ that cover organs in a body cavity closed to the exterior
serous
An example of a cutaneous membrane would be
skin
The epidermis is composed of _______________________.
stratified squamous epithelium
Outermost layer of epidermis
stratum corneum
The layer of epidermis that contains cells full of keratin is the:
stratum corneum
The layer of the epidermis that undergoes constant mitosis
stratum germinativum
Jan got her microscope sides mixed-up in lab as they were unlabeled. The slides with abundant adipose tissue should be labeled as the ____________________.
subcutaneous tissue (hypodermis)
the ______ membrane lines the fibrous capsule surrounding joints
synovial
Which of the following reduces friction in movable joints, such as the knee?
synovial fluid
the rector pili muscles contract to stand hairs upright when cold or frightened
true
infection of the sebaceous gland and the formation of pimples
acne
Which of the following is not a function of a membrane? •Produces a hormone that regulates growth and development •Covers the inner surface of hollow organs •Anchors organs to each other
all of the above are functions of a membrane
Sweat glands concentrated in the axilla and in the genital area
apocrine gland
The glands of skin that produce a thicker secretion are the:
apocrine glands
The small muscle attached to the hair is called the:
arrector pili
inflammation of hair follicles and sebaceous gland
boils and carbuncles
Small sacs lined with synovial fluid in joints are called:
bursae
The only dry membrane is the ________________.
cutaneous membrane
Skin fold that covers the root of the nail
cuticle
dry,dead flakes of stratum corneum
dandruff
nails and hair composed or keratin
true
What type of cutaneous gland produces sweat that cools the body upon evaporation from the skin?
Eccrine gland
sweat gland distributed over almost all of the body
Eccrine gland
nails and hair are produced by stratum basel
F
full thickness burn of the skin in which the skin becomes blackened or blanched (gray-white)
Third-degree, or full-thickness, burn
Which vitamin is synthesized by the skin?
Vitamin D
A thin sheetlike structure in the body can be referred to as a membrane.
true
Both serous fluid and synovial fluid serve as lubricants in their respective locations.
true
Eccrine glands produce a watery liquid.
true
T/F Apocrine gland secretions are normally odorless, and may be milky or yellowish in color.
true
T/F Apocrine glands are associated with hair follicles in the armpit and genital regions.
true
T/F Both nails and hair are produced by stratum basale of the epidermis
true
T/F Nails and hair are both composed of keratin.
true
T/F Sebaceous glands and sweat glands are cutaneous glands associated with the skin.
true
T/F The connective tissue composing the dermis is made of two regions; the papillary and the reticular areas.
true
T/F The majority of the cells in the epidermis are keratinocytes.
true
T/F The pigments that contribute to skin color are melanin, carotene, and hemoglobin.
true
T/F rule of 9 estimates how much body is burned
true
The "rule of nines" is a method of determining the percent of body surface area in a part of the body.
true
The layer of epithelial tissue directly under the nail is called the nail bed.
true
Third-degree burns can damage tissue down to the bone.
true