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Subcutaneous tissue Correct-- Lies below dermis and isn't part of skin
- Attaches to muscle and bone
- Contains loose connective tissue and fat cells provide insulation
Skin Appendages Correct-- Sebaceous glands excrete oils
- Apocrine sweat glands
- Eccrine sweat glands
Functions of Integumentary System Correct-- Protects underlying tissues by serving as a
surface barrier to the external environment (Bacteria, viruses, excessive water loss)
- Fat of the subcutaneous layer insulates and protects from trauma
- Sensory perception for external stimuli
- Control of heat regulation
- Excretion of water
- Secretion of sebum and sweat
,- Synthesizes vitamin D
Age Related Considerations of Integumentary System Correct-- Decreased turgor
- Thinning
- Dryness
- Roughness
- Wrinkling
- Vascular lesions (Spider veins, pooling of blood from standing for long term)
- Increased skin fragility
- Benign neoplasms
Assessment of Integumentary System: Inspection Correct-- Temp
- Turgor and mobility
- Moisture
- Texture
- General color and pigmentation
- Vascularity
,- Bruising
- Lesions or discolorations
- Unusual odors
Epidermis Correct-- Thin avascular superficial layer of skin
- Made up of outer dead cornified portion which serves as protective barrier
Melanocytes Correct-- Contain melanin, pigment which gives color to skin and hair and
protects body from damaging effects of UV sunlight
- The more melanin produced the darker the skin color
- Tanning however does causes extreme damage to melanocytes and skin
Keratinocytes Correct-- Produce fibrous protein, keratin
- Found in nails and hair
- Increased keratin w/ hypoxia in pts w/ cystic fibrosis and heart failure causes clubbed nails
Dermis Correct-- Connective tissue below epidermis
, - Thickness varies between 1-4mm
- Very vascular
- Collagen forms greatest part of dermis and is responsible for the skin's mechanical strength
Physical Exam of Integumentary System Correct-- Assess all skin (Folds of skin, under belly,
breasts, and groin)
- Assess erythema, rash, cyanosis
- Pigmentation changes (Hypo/hyperpigmentation)
- Skin color (Darker the skin, darker the lesion - lower risk for skin cancer)
Primary Skin Lesions Correct-Presentation of the active disease (Skin cancer)
- Macule
- Papule
- Vesicle
- Plaque
- Wheal
- Pustule