Skin & Aspects Of Thermoregulation Flashcards
What system does skin belong to
Integumentary system
3 layers of the skin
Epidermis, dermis and hypodermis
What does a keratinocyte do
Have a role in protection, forms a tight barrier to prevent unwanted substances entering body
What cell is found in the dermis
Fibroplasts
Cyanosis and how would you identify it
Lack of oxygen causing bluish colour in the skin, lips and nail beds
Looking at where skin is thin
Thermoreceptors
Gives the body ability to detect heat and cold in the environment
Adipose tissue
Regulating whole body energy and glucose homeostasis
Sweat glands
Regulates body temperature controlled by sympathetic NS
Blood vessels
Delivers blood to organs and tissues in body
How does pressure affect pressure ulcers?
Lack of enough blood flow can cause the affected tissue to die
How does moisture affect pressure ulcers
Leads to direct breakdown of the skin, stops resistance
How does shear affect pressure ulcers
Skin stays in 1 position, rest of body moves
How does friction affect pressure ulcers
Skin coming into contact with abrasive surface, skin exposed to bacteria
How does friction affect pressure ulcers
Skin coming into contact with abrasive surface, skin exposed to bacteria
Stage 1 of pressure ulcers
Intact skin with non-blanchable redness of a localised area usually over a bony prominence
Stage 2 of pressure ulcers
Partial thickness loss of the dermis presenting a shallow open ulcer with a pink/red wound bed
Stage 3 of pressure ulcers
Full thickness tissue loss where subcutaneous fat may be visible but bone, tendons or muscles not exposed
Stage 4 of pressure ulcers
Full thickness tissue loss with exposed bone tendon or muscle
Often includes undermining or tunnelling
Stage 4 of pressure ulcers
Full thickness tissue loss with exposed bone tendon or muscle
Often includes undermining or tunnelling
Why does skin subjected to harmful level of pressure appear pale initially
Blood flow is reduced, not enough oxygen
When the pressure is relieved, the skin quickly becomes red due to a physiological response, what is this called
Reactive hyperaemia
What is prolonged inches caused by and what does ischaemia cause cells to do?
Prolonged inches is caused by continued pressure and ischaema causes blood cells to aggregate
