Integumentary System
People most likely to develop skin cancer are those with _____
fair skin
In the fourth step of wound healing, the process of _____ fills the gap with connective tissue.
fibrosis
waterproof protective covering composed of sebum and sloughed off cells
vernix caseosa
True or false: Skin cancer can develop in people of any age.
True
Ceruminous glands secrete their waxy substance into the external ear canal. Their secretion is called _____.
cerumen
Many cells in the epidermis produce ______ and _____ when exposed to UV radiation.
cholecalciferol and Vitamin D3
In the first step of wound healing, bleeding is stopped by the ____ proteins and _____.
clotting/ platelets
Nails are derived from the same type of cells that produce the stratum ____ layer of the epidermis.
corneum
Because an entire portion of skin has been lost, and water cannot be retained in the area, a major concern with third degree burns is ______.
dehydration
Blood vessels within the ____ must supply nutrients to the epidermis.
dermis
Merocrine sweat production ______ during the aging process.
diminishes
Immune cells found in the epidermis are called _____ cells.
epidermal dendritic
Sebaceous glands are most abundant on the ____ and ____.
face and scalp
In the layer of the epidermis called the stratum _____, the process of keratinization begins.
granulosum
The cells of the stratum corneum contain large amounts of the protein ____.
keratin
Mammary glands only become functional in which of the following conditions.
lactating females, pregnant females
In the third step of wound healing, _____ within the wound begin to remove the clotted blood.
macrophages
The color of hair is the result of _____.
melanin production
The two types of sweat glands in the skin are ______ sweat glands and _______ sweat glands.
merocrine, apocrine
layer of embryonic cells that develop into the dermis
mesenchyme
layer of cells covering the developing embryonic epithelium
periderm
Among the stimuli detected by the sensory receptors of the skin are _____, ______, and _____.
pressure, vibration, and cold
The hair follicle is an oblique tube that surrounds the hair ____.
root
The sebaceous glands of the skin secrete an oily material called ____.
sebum
As a result of the aging process, hair follicles can actually _______ production of hairs.
stop
The skin houses two types of general exocrine glands:
sweat and sebaceous
Scattered among the cells of stratum basale are cells that are sensitive to touch. These sensory cells are called _____ cells.
tactile
In the first step of wound healing, the blood brings which of the following?
white blood cells, clotting proteins, antibodies
In the second step of a wound healing, a _____ forms.
blood clot
Women often accumulate subcutaneous fat in the ______, _____, hips, and thighs.
breasts, buttocks
Friction ridges are located on the skin in four regions of the body:_____,________,________, and toes.
fingers, palms, soles
The main functions of the subcutaneous layer are which of the following?
Provides thermal insulation, protects the body, acts as an energy reservoir.
Which is a possible description of the skin's form and function?
barrier, indicator of health, and self renewing
In the first sep of wound healing, cut blood vessels release ______ into the wound.
blood
In the nails, the lunula appears whitish because a thickened underlying stratum basale obscures the underlying ____.
blood vessels
The epidermis lacks which of the following?
blood vessels, adipose tissue, and collagen fibers
The nail plate is composed of the nail _____, the nail root, and the free edge.
body
In the first step of wound healing, the blood brings which of the following?
clotting proteins, white blood cells, antibodies
The appendages of the epidermis are: hair, _____, _____ glands and sebaceous glands.
nails, exocrine
Hair is found almost everywhere on the body except the sides and ______ of the hands and fingers, the sides and _____ of the feet and toes, the lips, and portions of the external genitalia.
palmar; soles
The scalp normally loses between _____ hairs per day.
10-100
Healing of second degree burns takes approximately _______ weeks, and slight scarring may occur.
2-4
Which are functions of the skin?
Calcitriol production, barrier to water loss, and heat regulation
