ATI FUNDAMENTALS- TISSUE INTEGRITY Flashcards
(170 cards)
LARGEST ORGAN SYSTEM OF THE BODY
SKIN
SKIN ACCOUNTS FOR WHAT % OF TOTAL BODY WEIGHT
15
The main function of the skin is
to provide a barrier against injury, infection, ultraviolet radiation (UV), and fluctuations in temperature changes.
The skin plays an important role in
the perception of touch, pain, pressure, and vibration.
3 LAYERS OF SKIN
the epidermis, the dermis, and a fatty subcutaneous layer of adipose tissue.
epidermis
The outer most layer of the skin, made of squamous epithelial cells, which provides a barrier against the external environment.
keratinocytes
Cells formed in the basal layer of the skin that function to protect the skin from the external environment.
WHEN KERATINOCYTES LEAVE THE BASAL LAYER, WHERE DO THEY MIGRATE
THE MORE SUPERFICIAL LAYERS WHERE THEY DIE IN TIME ARE REMOVED THROUGH SHEDDING
CELLS FOUND IN THE EPIDERMIS
MELANOCYTES
KERATINOCYTES
MERKEL CELLS
LANGERHANS
MELANOCYTES PRODUCE
MELANIN
MELANIN
a pigment that determines the color of the hair and skin. Melanin also absorbs radiant energy from the sun and protects the skin from harmful UV rays.
MERKEL CELLS
detect light touch, especially in the palms of the hands and soles of the feet.
LANGERHANS CELLS
ingest and package foreign antigens to be presented to lymphocytes, which then trigger an immune response in the epidermis.
DERMIS
UNDER THE EPIDERMIS
is composed of connective tissues along with capillaries, blood vessels, and lymph vessels.
FUNCTIONS OF THE DERMIS
sustains and supports the epidermis by providing strength, flexibility, and nourishment. The dermis also protects underlying structures from injury and assists with wound healing.
COLLAGEN AND ELASTIN FIBERS OF THE DERMIS
PROVIDE STRENGTH AND ELASTICITY
PROTECTS FROM COMPROMISED INTEGRITY
SUBCUTANEOUS LAYER
MOSTLY ADIPOSE TISSUE
INNERMOST LAYER
CONTAINS BLOOD VESSELS AND NERVES THAT ASSIST IN THERMOREGULATION AND SENSATION
FUNCTIONS OF THE SUBCUTANEOUS LAYER
insulates the body, absorbs shock, and pads the internal organs and structures
A nurse is teaching a group of older adults at a community center about the functions of the skin. Which of the following statements should the nurse include in the teaching? (Select all that apply.)
A
The skin plays an important role in the production of vitamin D.
B
The dermis contains cells that help prevent infection.
C
The skin protects against bacteria and viruses.
D
The skin helps regulate the body temperature.
A, C, D
Risk Factors for Impaired Tissue Integrity
TIME- EARLY AND LATE IN LIFE
IMPAIRED MOBILITY
OBESITY
CANCER
CHRONIC ILLNESSES
maceration
An irritation of the epidermis caused by moisture.
COMMON IN INFANCY
DERMATITIS
A red skin irritation that develops when the skin is exposed to irritants such as feces, urine, stoma effluent, and wound exudates. This type of dermatitis is called an irritant dermatitis.
COMMON IN INFANCY
SKIN TEARS
Loss of the top skin layer caused by mechanical forces. The severity of a skin tear is defined by the depth of the skin layer loss.
DUE TO COLLAGEN STORES DECREASE, THIN SKIN, ELASTICITY LOSS
CONGENITAL CONDITIONS THAT PREDISPOSE CLIENTS TO TISSUE INTEGRITY ISSUES
SPINA BIFIDA
CEREBRAL PALSY
LIVER FAILURE
KIDNEY DISEASE
CANCER