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chapter 6 study guide

Terms in this set (41)

the stratum corneum of the epidermis has cells that are filled with
keratin
melanin is produced by
melanocytes
hair is formed by cells within the
hair follicle
what is another characteristic of hair
1) hair growth requires a viable hair follicle
2) a hair follicle is an extension of the epidermis into the dermis
3) ?
the hair follicle rest on a dermal papilla
Goosebumps or the hair standing on end occurs because of contractions of
arrector pili
third-degree Burns result in excessive
fluid lost
what is another characteristic of malignant melanoma?
1) most dangerous skin cancer
2) usually arises from melanocytes
3) ?
metastasizes when growing downwards
what is another characteristic of skin cancer
1) basal cell carcinoma produces an open ulcer
2) ?
squamous cell carcinoma produces a modular keratinized tumor
what is another function of the skin
1) maintenance of homeostasis
2) prevention of water loss
3) ?
synthesis of rarions biochemicals
the only cell layers that undergo mitosis is the?
stratum basale
blackheads can result from the blockage of the
sebaceous gland
list three characteristics of second-degree burns
blisters, swelling, and severe pain
keratin is found in which layer of the skin?
epidermis
What is another characteristics of hair follicles
1) have arrector pili muscles attached to them
2) have oil glands that empty into them
3)?
Contain the hair root
The Superficial layers of the epidermis is the?
stratum corneum
the subcutaneous layer is located beneath the?
dermis
the dermis is composed largely of
fibrous connective tissue
the cells that produce the shaft of a hair are
epithelial cells
the blood vessels that supply skin are found in the subcutaneous layer and the _____
Dermis
eccrine sweat glands respond primarily to
elevated body temperature
the main function of melanocytes is to protect deeper cells from?
sunlight
Cutsneous carcinomas are most commonly caused by exposure to
ultraviolet light
what is another characteristic of a person most likely to develop a cutaneous carcinoma
1) over 40 years old
2) works or plays outside
3)?
Light complexions
melanomas seem most commonly to be caused by relatively short exposure to
high intensity sunlight
The glands of the skin that begin to function at puberty are
Apocrine glands
Fingerprints and footprints are produced by projections into the epidermis called
Dermal papillae
what is another characteristic of keratinization
1) is a process that epidermal cells undergo as they move to the surface
2) produces cells filled with keratin
3) gives the stratum corneum its structural strength and water proofing
4) ?
produces and outer layer of epidermal cells that resist abrasions
Tell which type of cutaneous layer is described for avascular
Epidermis
Tell which type of cutaneous layer is described for dense connective tissue
Dermis
Tell which type of cutaneous layer is described for cleavage lines
Dermis
Tell which type of cutaneous layer is described for fingerprints
Dermis
Tell which type of cutaneous layer is described for tightly packed epithelial cells
Epidermis
Tell which type of cutaneous layer is described for nerves
Dermis
Tell which type of cutaneous layer is described for melanocytes
Epidermis
Tell which type of cutaneous layer is described for keratin
Epidermis
Tell which type of gland is described
cools the body by releasing merocrine secretion
Eccrine
Tell which type of gland is described
lubricates skin and hair
sebaceous
Tell which type of gland is described
opens into hair follicle produces sebum
sebaceous
Tell which type of gland is described open on the surface of skin watery secretion
Eccrine
Tell which type of gland is described produces body odor when bacteria breaks it down
Apocrine
Tell which type of gland is described
, opens into hair follicles thick organic secretion
Apocrine
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