Chapter 5
when the arrector pili muscles contract,
goose bumps, are formed
the deepest layer of cells in the epidermis is the cells of the stratum
stratum basale
The skin is also called the
Cutaneous membrane
Thin skin is defined by the thickness of the
Epidermis
Which of the following is the correct order of the layers of the cutaneous membrane?
Epidermis, dermis, hypodermis
The most important factor in skin color is
Genetic factors
The tissue under the skin is called?
Hypodermis or subcutaneous layer.
Thick skin can be found on the
Palms
The layer of the epidermis at the surface is the
Stratum corneum
An epidermal layer that produces large amounts of keratin is the
Stratum granulosum
the condition that results from clogged sebaceous glands is
acne
the hypodermis contains mostly
adipose tissue
the glands that develop at puberty are
apocrine glands
Exposure of the skin to ultraviolet light
can stimulate the production of melanin
the fold of stratum corneum over the base of a nail is called the
cuticle
shafts of hair are made by
dead epidermal cells
The dermis is composed largely of
dense irregular connective tissue
folds of the dermis that cause fingerprints are called
dermal papillae
Epidermal cells are supplied with nutrients from blood vessels in the
dermis
accessory structures of the skin include
hair follicles, arrector pili muscles, sebaceous glands, apocrine sweat glands.
when the body is overheated,the skin responds by
increasing blood flow to the dermis
perspiration produced by apocrine sweat glands
is limited to the hair follicles of the axilla, nipples, and groin.
The pigment melanin
is produced by cells called melanocytes and is found in higher concentration in individuals with darker skin. Protects DNA from the damaging effects of UV radiation.
a thickened area of scar tissue that is covered by a shiny,smooth epidermal surface is called
keloid
the protein that contributes to many of the skins protective qualities is called
keratin
the subcutaneous layer is made of
loose connective and adipose tissues
the pale cresent area of the nail is called the
lunula
In albinism, ____ is lacking .
melanin
The skin may turn orange as a result of ______ buildup.
melanin
the most severe type of skin cancer is most likely to develop from
melanocyte
Functions of the skin include:
regulating body temperature
eccrine sweat glands
respond primarily to elevated body temperature
which layer of epidermis has RNA and is involved in protein synthesis
stratum spinosum
glands that are located in the ear canal are called
ceruminous glands
where do the hair follicle extend into
subcutaneous layer
As cells are pushed from the deeper portion of the epidermis toward the surface,
They die.
