Skin
Melanosomes are transferred to keratinocytes in the stratum basale via the process of ______ or exocytosis.
phagocytosis
In anatomy, a single hair is also called a(n) ______.
pilus
The secretion produced by apocrine sweat glands is viscous, cloudy, and composed of ______ that are acted upon by bacteria, producing a distinct, noticeable odor.
proteins and lipids
In the third step of wound healing, the cut blood vessels ______ and grow in the wound.
regenerate
The secretion from merocrine sweat glands are carried to the surface of the epidermis via ______. The secretions of apocrine sweat glands are carried into __________.
sweat ducts, hair follicules
_____ hair is the type of hair that grows on the scalp, and is also the hair of eyebrows and pubic region. In men, it also grows on the face.
terminal
Differences in hair density are due primarily to differences in its ______ and ______.
texture and pigmentation
At puberty, terminal hair replaces ______ hair in the armpits and pubic regions of the body.
vellus
The ______ layer of the dermis contains areolar connective tissue and dermal papillae.
papillary
What are the three phases of the hair growth cycle?
act
Which best describes the differences between sensible and insensible perspirations produced by sweat glands in the skin?
Insensible is in the form of water vapor and cannot be seen while sensible contains water and salts and can be seen.
True or false: The epidermis exhibits variations among different body regions within a single individual, as well as differences between individuals.
true
The layer of the skin from which most new epidermal cells are derived from is the ______.
basale
Anagen is the longest part of the growth cycle and lasts from about ______ months to as much as ______ years, depending on the genetics of the person.
18/7
Migration of a keratinocyte from the stratum basale to the stratum corneum takes about _____ weeks.
2 weeks
Healing of second degree burns takes approximately ______ weeks, and slight scarring may occur.
2-4
The catagen phase is a very short phase and lasts for about ______ weeks
3-4
The telogen phase of the hair growth cycle lasts for about ______ months.
3-4
Which pigments contribute to skin color? Select all that apply. Multiple select question.
Carotene Hemoglobin Melanin
Which of the following is NOT a function of the skin?
Synthesis of red blood cells
Which are functions of the subcutaneous layer?
Thermal insulation Energy reservoir Protection
Hair loss that is normally the result of aging is called ______.
alopecia
The active growing phase of the hair growth cycle is called the ______ phase.
anagen
The two types of connective tissue in the dermis are ______.
areolar and dense irregular
Place the following layers of thin skin in order from superficial to deep.
cgsb
Another name for the skin is the ______ membrane.
cutaneous
The reticular layer of the dermis is ______.
deep to the papillary layer
Nerve fibers in the skin monitor sensory receptors in the ______.
dermis and epidermis
Merocrine sweat production ______ during the aging process
diminishes
In the second step of wound healing, a blood clot temporarily patches the ______ of the wound together and acts as a barrier to prevent the entry of ______ into the body.
edges, pathogens
The dermal papillae interlock with deep projections of the epidermis called ______.
epidermal ridges
There are two types of melanin, _________ and pheomelanin, together they produce various ratios of yellow, reddish, tan, brown, and black shades.
eumelanin
Sebaceous glands are classified as ______ glands that discharge an oily, waxy secretion called ______.
holocrine, sebum
The subcutaneous layer is also known as the ______ or superficial fascia.
hypodermis
The whitish semilunar area of the proximal end of the nail body is called the ______.
lunula
Sebaceous glands produce (an) ______ material that coats hair shafts and the epidermal surface
oily
The epidermis of thin skin ranges in thickness from ______ millimeters to ______ millimeters thick
0.075, 0.150
The skin is made up of two distinct layers, the _____ and the _____.
epidermis, dermis
Third-degree burns involve the ______, dermis, and ______ layer, which often are destroyed.
epidermis, subcutaneous
Friction ridges on the tips of fingers are known as ______. Multiple choice question.
fingerprints
Which type of hair is associated with the fetus? Multiple choice question.
lanugo
During our lives, we produce three kinds of hair, which are ______ and terminal hair.
lanugo, vellus
PIgment producing cells of the epidermis are ______.
melanocytes
Nerve fibers in skin control ______.
blood flow gland secretion rates
A hemangioma is a congenital anomaly that results in skin discoloration due to ______ that proliferate and form a benign tumor.
blood vessels
In the nails, the lunula appears whitish because a thickened underlying stratum basale obscures the underlying ______.
blood vessels
Lines of cleavage (or tension lines) in the skin relate to the predominant orientation of ______ fiber bundles.
collagen
The specific orientation of ______ fiber bundles in the dermis is a result of the direction of applied ______ during routine movements.
collagen, stress
The cells of the stratum corneum contain large amounts of the protein called ______.
keratin
Melanin is transferred in membrane-bound vesicles from _____ to keratinocytes in the stratum basale.
melanocytes
The secretions of sebaceous glands, called ______ is usually deposited into a ______.
sebum, hair follicle
The skin is said to be ______ because some materials are able to pass through it.
selectively permeable
There are three main variations in the epidermis. These variations are ______, ______, and skin markings.
thickness, coloration
Metabolic regulation is a function of the integument.
true
Nails and hair are components of the integumentary system.
true
Skin is classified as either thick or thin based on two parameters. These are the number of ______ in the epidermis and the relative thickness of the epidermis, rather than the thickness of the entire integument.
layers
The major function of merocrine sweat glands is ______
thermoregulation
Under normal conditions, some interstitial fluids slowly escape through the epidermis via a process called ______ water loss.
transepidermal
In children, ______ is the primary human hair and is found on most of the body.
vellus
Since there are no blood vessels in the epidermis, where does its supply of nutrients come from?
Blood vessels in dermis
The epidermis of thick skin ranges from 0.4mm to ______ mm thick.
0.6
Which describes the tissue type of the epidermis?
Keratinized stratified squamous epithelium
In first degree burns, the healing time averages about _____ days, and typically no scarring results.
3-5
Keratinocytes of the epidermis are usually present for about ____ week(s).
4
On a normal scalp, about _______% of follicles are in the anagen phase.
80-95
The integument accounts for about _____% of the body weight.
8
Which layer is the most superficial in the epidermis?
Stratum corneum