4C LOCK TF IN. Flashcards
three pigments that contribute to skin color
melanin, carotene, hemoglobin
what is melanin?
yellow, reddish brown or black
what is carotene
orange, yellow. (found in veggies)
what is hemoglobin?
red coloring from blood cells in the dermal capillaries, oxygen content determines the extent of red coloring
Redness (erythema)
due to embarrassment, inflammation, hypertension, fever or allergy
pallor (blanching)
due to emotional stress/fear, anemia, low blood pressure, impaired blood flow to an area
Jaundice (yellow cast)
indicates a liver disorder
bruises (black and blue marks)
hematomas
What are the skin colors?
redness (erythema), pallor (blanching), jaundice (yellow cast), bruises (blue and black marks)
Cutaneous glands
sebaceous glands, sweat glands, all exocrine glands
where is the sebaceous glands located?
all over the skin except the palms and soles
what does the sebaceous glands produce?
sebum (oil)
what does sebum do?
makes skin soft and moist, prevents hair from becoming brittle, kills bacteria
What does sebaceous glands have?
ducts that empty into hair follicles, open directly onto skin surface
When are Sebaceous glands activated?
activated at puberty with increased androgens.
What does sweat glands produce?
sweat
where is sweat glands located?
widely distributed in skin
what are the 2 types of sweat glands?
eccrine glands, apocrine glands
where is eccrine gland located
all over the body
how do eccrine glands open?
via duct to sweat pores on the skin’s surface
what does eccrine glands produce?
acidic sweat: water, salts, vitamin C, traces of waste
how does eccrine glands function?
body temperature regulation.
Apocrine glands
ducts empty into hair follicles in the armpit and genitals, functions at puberty, releases sweat that contains fatty acids and proteins (yellow color_, body temperature regulation.
