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