Ch. 7.3 Integumentary System Key Terms
A person with an absence of color pigments
albino
also called corium, or "true skin." This layer has a framework of elastic connective tissue and contains blood vessels, lymph vessels, nerves, involuntary muscle, sweat and oil glands, and hair follicles.
dermis
or skin
integumentary system
pus-filled sacs such as those seen in acne, or pimples
pustules
blisters, or fluid-filled sacs, such as those seen in chickenpox
vesicles
(get smaller)
constrict
get larger
dilate
a yellow discoloration of the skin
jaundice
oil glands that usually open onto hair follicles.
sebaceous glands
itchy, elevated areas with an irregular shape; hives and insect bites are examples
wheals
areas of dried pus and blood, commonly called scabs
crusts
the outermost layer of skin.
epidermis
A brownish black pigment
melanin
the innermost layer. It is made of elastic and fibrous connective tissue and adipose (fatty) tissue and connects the skin to underlying muscles.
subcutaneous fascia
a bluish discoloration of the skin caused by insufficient oxygen.
cyanosis
a reddish color of the skin that can be caused by either burns or a congestion of blood in the vessels.
erythema
flat spots on the skin, such as freckles
macules
(sweat glands) are coiled tubes that extend through the dermis and open on the surface of the skin at pores.
sudoriferous glands
a closed sac with a distinct membrane that develops abnormally in a body structure; usually filled with a semisolid material
cyst
the innermost layer
hypodermis
firm, raised areas such as pimples and the eruptions seen in some stages of chickenpox and syphilis
a deep loss of skin surface that may extend into the dermis; may cause periodic bleeding and the formation of scars
ulcer