Each of the following is a function of the integumentary system, except
excretion of salts and wastes.
provision of sensation.
protection of underlying tissue.
synthesis of vitamin C.
maintenance of body temperature
synthesis of vitamin c
The two components of the integumentary system are the
cutaneous membrane and accessory structures.
cutaneous membrane and hypodermis.
epidermis and superficial fascia.
epidermis and dermis.
integument and hypodermis.
cutaneous membrane and accessory structures
The tough "horny" superficial layer of the epidermis is known as the
The type of cells that form the strata in the epidermis are
Water loss due to evaporation of fluid that has penetrated through the skin is termed ________ perspiration.
The layer of the epidermis that contains abundant desmosomes is the
Characteristics of the epidermis include:
serves as UV radiation protection
All of the answers are correct
The layer of stem cells that constantly divide to renew the epidermis is the
The protein that reduces water loss at the skin surface is
Thin skin contains ________ layer(s) of keratinocytes, and thick skin contains ________ layers.
An albino individual lacks the ability to produce
The primary pigments contained in the epidermis are
xanthophyll and melanin.
melanin and chlorophyll.
carotene and xanthophyll.
carotene and melanin.
melanin and chromatin.
carotene and melanin
Exposure to ultraviolet light (sunlight) causes the skin to darken by increasing the production of
The pigment found in vegetables that can make the skin appear orange or yellow is called ________.
The skin appearance that results from dark-red hemoglobin is called _______
An important vitamin that is formed in the skin when it is exposed to sunlight is
Types of skin cancers include
squamous cell carcinoma.
basal cell carcinoma.
squamous cell carcinoma, malignant melanoma, and basal cell carcinoma.
squamous cell carcinoma, malignant melanoma, basal cell carcinoma
A bruise turns "black and blue" because of ________ in the dermis.
broken blood vessels
Which of the following is NOT part of the cutaneous membrane?
Which accessory structure is NOT found within the dermis?
arrector pili muscle
All of the listed structures are found within the dermis
hat structures do you find within the hypodermis?
hair shaft and pores of sweat glands
sebaceous glands and sweat glands
hair follicles and arrector pili muscles
fat and the cutaneous plexus
fat and cutaneous plexus
he papillary layer is more superficial than the reticular layer of dermis. True or false?
Lanugo is found
on the palms of the hands and on the soles of the feet.
on the palms of the hands.
on a fetus.
on the scalp.
on the soles of the feet.
on a fetus
When the arrector pili muscles contract,
"goose bumps" are formed.
sweat is released from sweat glands.
the skin changes color.
hairs are shed.
goose bumps are formed
Fine hairs (like "velvet") that lack pigment and cover much of the body surface are called ________.
Coarse pigmented hairs are called _______
Earwax is produced by ________ glands.
Nail production occurs at the nail
The cuticle around a nail is the
The stratum corneum just under the free-edge of a nail is the
In the condition known as erythema, the skin takes on a(n) ________ color
what is most abundant cell of epidermis
five strata from basal lamina to free surface
which stratum layer forms bond between epidermis and dermis and forms fingerprints
which stratum is exposed to surfuce of skin replaced ever 2 weeks
The formation of a layer of dead, protective cells filled with keratin
insensible perspiration vs. sensible
what do melanocytes do
protects skin from sun damage
what fibers in epithelial tissue
where are hair, hair follicles, sebacious glands, nails located
is the epidermis vascular or avascular
epidermal growth factor (EGF)
used in labs to produce skin grafts
where is dermis located
between epidermis and subcutaneous layer
the outer papillary layer and deep reticular layer form what skin structure
inflammation of the papillary layer
properties of flexibility and resiliance
very strong fibers resist stretching but bend easily, provide flexibility
fibers that permit stretching and then recoil to original length, limit flexibility of collagen fibers to prevent damage to tissue
what is the site of subcutaneous injections?
what glands lubricate the hair and control bacteria
what types of hair are shed
sweat glands of armpits, in response to hormonal or nervous signal
sweat glands on palms and soles functions to cool skin excrete water and electrolytes, sensible perspiration
ceruminous glands produce:
what cells trigger an inflammatory response at site of injury
what cells produce scar tissue