integumentary system
sometimes called a membrane, an organ or a system
epidermis
outer most layer of skin
dermis
corium or true skin
subcutaneous fascia
also known as hypodermis; innermost layer of skin
sudoriferous
sweat glands; cools the body through evaporation of perspiration
sebacous
oil glands that secret sebum that keeps the skin and hair from becoming dry and brittle
alopecia
baldness-permanent loss of hair on the scalp
Functions of the integumentary system
1. protection
2. sensory perception
3. body temperature regulation
4. storage
5. absorption
6. excretion
7. production
melanin
a brownish black pigment; absorbs ultraviolet rays for tanning; concentrate areas causes freckles
carotene
a yellowish red pigment also helps to determine skin color
albino
a person with an absence of color pigments
erythema
reddish color of the skin caused by burns or congestion of blood in the vessels
jaundice
a yellowish discoloration of the skin can indicate bile in the blood as a result of liver or gallbladder disease
cyanosis
bluish discoloration of the skin caused by insufficient oxygen in the blood
macales
flat spots on the skin; such as freckles
papules
firm raised areas such as pimples and the eruptions seen in first stage of chickenpox and syphyilis
vesicles
blisters or fluid filled sacs such as those seen in acne or pimples
pustules
pus-filled sacs such as those seen in acne or pimples
crusts
areas of dried pus and blood, commonly called "scabs
wheals
itchy, elevated areas with an irregular shape: hives and insects bites are examples
ulcer
a deep loss of skin surface that may extend into the dermis; may cause periodic bleeding and the formation of scars
acne vulgaris
inflammation of the sebaceous glands
athlete's foot
contagious fungal infection; infection that usually affects the feet
dermatitis
inflammation of the skin; can be caused by any substance that irritates the skin
eczema
non-contagious, inflammatory skin disorder caused by an allergen, or irritant
impetigo
contagious skin infection usually caused by streptococci or staphylococci bacteria
psoriasis
non-contagious, inherited skin disease
ringworm
highly contagious fungus infection of the skin or scalp
warts
verrucae; caused by a viral infection of the skin
A lack of oxygen supply to the skin can cause the skin to become:
cyanotic
What medical treatment is effective because of the absorption function of the skin ?
nicotine patch
The excretory function of the skin allows the body to eliminate excess:
water and heat
Spending short periods of time in the morning sun can be beneficial. How ?
helps in the production of Vitamin D
The presence of cellulite can be attributed to what layer of the skin ?
subcutaneous
When compared to someone with very light skin, a person with dark skin has more:
melanin
What causes the pinkish tint in an albino's skin ?
blood vessels
What layer of the skin contains blood vessels, nerves and hair follicles ?
dermis
Margie has always had white spots on her arm. They are MOST LIKELY caused by
a lack of melanin
Which of the following is a permanent disorder of the integumentary system ?
alopecia
When you look at the skin, what layer can you see ?
epidermis
A new father describes his baby as looking like a "pumpkin." The baby is MOST LIKELY:
jaundiced
You might expect a person's skin to be jaundiced if he/she has:
hepatitis
Basal cell and squamous cell are types of:
skin cancer
Conrad has a crust on his knee. What did Conrad do two days ago ?
Fell and skinned his knee
Which of the following skin diseases is contagious ?
athlete's foot
Your friend has developed a patch of red skin that is covered by silver scales. What is it ?
psoriasis
What skin disorder is often life threatening ?
Melanoma
What skin disorder can be treated with antibiotics ?
acne vulgaris
Greta has macules on her face. The more common term is:
freckles