Flashcards
3 pigments that contribute to skin color:
Melanin
Carotene
Oxygen-rich hemoglobin
Characteristics of melanin:
Yellow, reddish brown, or black
Characteristics of carotene:
Orange-yellow pigment
Found in carrots and other orange, deep leafy green vegetables
Characteristics of oxygen-rich hemoglobin:
Pigment in red blood cells in the dermal blood vessels
Skin color is also influenced by ______ stimuli. Alterations in skin color signal certain ______ states
Emotional
Disease
Redness:
Erythema
Erythema indicates:
Embarrassment
Fever
Hypertension
Inflammation
Allergy
Pale skin:
Pallor; or blanching
Pallor/ blanching may indicate:
Emotional stress
Anemia
Low blood pressure
Impaired blood flow to the area
Yellow skin:
Jaundice or a yellow cast
Jaundice signifies:
A liver disorder in which excess bike pigments are absorbed into blood, circulated throughout the body, and deposited into body tissues
Blue and black skin:
Bruises
Bruises indicate:
Sites where blood has escaped from the circulatory system and has clotted-clots called HEMOTOMA
May signify deficiency of vitamin c in the diet, or hemophilia (bleeder’s disease)
Appendages of the skin include:
Cutaneous glands, hair, hair follicles, and nails
Cutaneous glands are all _______ glands; which means:
Exocrine
They release their secretions to skin surface via ducts
Two groups of exocrine glands:
Sebaceous glands
Sweat glands
Which group of exocrine glands is found: all over the skin, except palms of the hands and soles of the feet?
Sebaceous
Which group of exocrine glands produces sebum?
Sebaceous glands
A mixture of oily substances and fragmented cells. Is a lubricant that keeps the skin soft and moist and prevents the hair from becoming brittle
Sebum
Sweat glands also called:
Sudoriferous
Two types of sweat/sudoriferous glands:
Eccrine
Apocrine
Defined as: far more numerous and found all over the body
Eccrine glands
Produce: sweat, a clear secretion that is primarily water plus some salts, vitamin c, traces of metabolic wastes, and lactic acid.
Eccrine glands
Sweat reaches skin through a ____
Pore
