Skin Hair Nails Flashcards
4 layers of epidermis
Stratum corneum
Stratum lucidum
Stratum granulosum
Stratum germinativum
Are attached to hair follicles and, therefore, are present over most of the body, excluding the soles and palms.
They secrete an oily substance called sebum that waterproofs the hair and skin.
Sebaceous glands
Two types of sweat glands
Apocrine glands
Eccrine glands
Sweat glands that are located over the entire skin, secretion of swear and thermoregulation
Eccrine glands
associated with hair follicles in the axillae, perineum, and areolae of the breast.
Small and non functional until puberty and when activated, they secrete a milky sweat
Apocrine glands
develops within sheath of epidermal cells.
Hair follicle
2 types of hair
Vellus hair (peach fuzz)
Terminal hair (particularly scalp and eyebrows)
loss of color
Pallor
appear blue-tinged, especially in the
perioral, nail bed, and conjunctival area.
Cyanosis
yellow skin tones – seen in the sclera,
oral mucosa, palms, and soles.
Jaundice
darkening of skin in body folds and creases, especially neck, groin, and axilla. Hyperpigmentation
Acanthosis nigricans
result from cardiopulmonary
problem.
Central cyanosis
skin redness and warmth—seen in
inflammation, allergic reactions, or trauma.
Erythema
called malar rash, across the
bridge of the nose and cheeks.
Butterfly rash
arise from normal skin due to irritation or disease.
Primary lesion
arise from changes in primary lesion.
Secondary lesion