Week 12- Integumentary System Flashcards
(135 cards)
True or false: The skin is not the largest organ in the body
False
(it is lol)
The skin constitutes _____% of the body weight
15-20
The skin consists of ____ layers
3
Primary function of the skin
To protect underlying structures from external injury and harmful substances
Other functions of the skin
-Holding the organs together
-Sensory perception
-Contributing to fluid balance
-Controlling temperature
-Absorbing UV radiation
-Metabolizing vitamin D
-Synthesizing epidermal lipids
Two types of lesions
Primary and secondary
First lesion to appear on the skin and has a visually recognizable structure
Primary lesion
Macule, papule, plaque, nodule, tumor, wheal, vesicle, pustule
Primary lesion
When changes occur in a primary lesion
Secondary lesion
Scale, crust, thickening, erosion, ulcer, scar, excoriation, fissure, atrophy
Secondary lesion
True or false: Many factors affect the progression of a skin lesion to an open wound and the individual’s subsequent ability to heal
True
(ex: tobacco use, psychosocial status, and nutritional status)
Lab values to understand for skin lesions
-Prealbumin (indicate nutritional status)
-Glucose
-Hemoglobin
-Hematocrit (monitor wound healing)
True or false: The skin does not undergo numerous changes throughout the life span
False
(it does)
Changes the skin undergoes throughout the life span
-Gray hair, balding, loss of secondary sexual hair, increased facial hair
-Lax skin, vascular changes (e.g., decreased elasticity of blood vessel walls, angiomas), dermal or epidermal degenerative changes, and wrinkling
The most obvious changes occur first during __________ and again during older ___________
-Puberty
-Adulthood
True or false: Women may experience balding after menopause
True
During adolescence and adulthood, the use of birth control pills or pregnancy may result in temporary changes in __________ patterns or ____________ of the cheeks and forehead known as melasma or pregnancy mask
-Hair growth
-Hyperpigmentation
Structural and functional changes that occur in the skin
-Diminished pain perception
-Increased vulnerability to injury
-Decreased vascularity
-Weakened inflammatory response
__________ within the reticular dermis are reduced in number, and the walls are thinned
Blood vessels
The reduction and thinning of blood vessels result in the compromise of __________. The individual appears to have ___________ and impaired capacity to ____________, a possible contributing factor to the increased susceptibility of older individuals to ____________ and ___________.
-Blood flow
-Pale skin
-Thermoregulate
-Hypothermia
-Hyperthermia
A primary factor in the loss of protective functions of the skin is the diminished barrier function of the ____________.
Stratum corneum
As the stratum corneum becomes thinner, the skin becomes _____________ and ____________, reacting more readily to minor changes in humidity, temperature, and other irritants
-Translucent
-Paper thin
Fewer melanocytes results in decreased protection against ______________
UV radiation
A reduction in Langerhans cells represents a loss of ___________ and an increased risk of ___________
-Immune surveillance
-Skin cancer