Chapters 12: Skin, Hair, Nails Flashcards
Epidermis
Outer highly differentiated layer composed of basal cell layer that forms new skin cells and outer horny cell layer of dead keratinized cells
Dermis
Inner supportive layer made up of connective tissue or collagen and elastic tissue
Function of the skin
Protection, Prevents penetration, Perception, Temperature regulations, Identification, Communication, Wound repair, Absorption and excretion, Production of Vitamin D
What can you tell from just looking at skin?
Hydration, Bruises, Scar, Liver issues, Age, Wight gain/loss, Sweating, Oxygenation
What can you tell from just looking at hair?
Grooming and hygiene, Nutritional status, Age based on graying, Genetics (i.e balding or early graying)
What can you tell from nails?
Cap refill, Clubbing from chronic hypoxia
Sebaceous glands
Produce a protective lipid substance called sebum (everywhere except palms and soles)
Sweat glands (2 TYPES)
Eccrine: coiled tubules that open directly onto the skin surface, produce a dilute saline saline called sweat
Apocrine: Produce a thick, milky secretions and open into the hair follicles (active during puberty)
Lanugo
Fine hairs on a newborn infant
Vernix caseosa
Thick cheesy substance made of sebum and shed epithelial cells
Mongolian spots
Darker discolored spots on an infant (hyperpigmentation on darker skinned babies)
Erythema Toxicum
Rash on infants (almost looks like chicken pox)
Milia
A cyst, a small, white bump that typically appears on the nose and cheeks
Stork bites
A common type of birth mark seen in a new born
Acrocyanosis
Bluish or purple coloring of the hands and feet caused by slow circulation
Physiologic Jaundice
Happens in a newborn 3-4 days after they are born and can disappera
Pathological Jaundice
Happens when baby is born
Ineffective thermoregulation in babies
Babies can’t shiver, make sure babies are swaddles
Carotenemia
yellow pigmentation of the skin (xanthoderma) and increased beta-carotene levels in the blood
Striae Gravidarum
Stretch marks
Chloasma
Changes pigmentation in face
Linea Nigra
Dark line down the abdomen
Palmar erythema
Redness in palms of hands
Vascular spider
Tiny veins
What to keep in mind with changes in adolescents
Sebaceous gland secretions increase, secondary sex characteristics, subcutaneous fat deposits increase
Senile purpura
Mild trauma leading to dark red discoloration spots
Keloids
Scars tat form at the site of a wound and grow beyond normal boundaries of wound
Pigmentary disorders
Dark or light spots