Skin Disorders & Wounds Flashcards
The _________ layer of the skin is thin and devoid of blood vessels and divided into outer hrny layer and inner cellular layer. It depends on the _______layer for nutrition.
Epidermis ; Dermis
The _______ layer is supplied with blood, contains connective tissue, sebaceous glands, sweat glands, and hair follicles.
Dermis
The _________ contains adipose (fat tissue).
Subcutaneous tissues / hypodermis
Functions of the skin (4)
- ) Homeostasis - maintain pH
- ) Provides boundaries, protects underlying tissues from microorganisms, and radiation
- ) Modulates body temp
- ) Synthesizes vitamin D
_______ is the brownish pigment of the skin, genetically determined, increased by sunlight
Melanin
_______ is a golden yellow pigment that exists in subcutaneous fat and in heavily keratinized areas like palms and soles
Carotene
__________ is a bright red pigment, predominates in arteries and capillaries.
Oxyhemoglobin
_______ is darker somewhat bluer pigment from oxyhemoglobin losing its oxygen to the tissues. Increase in this pigment causes _________.
Deoxyhemoglobin ; cyanosis
_______ hair is short, fine, inconspicuous, and relatively unpigmented.
Vellus
________ hair is coarser, thicker, more conspicuous and usually pigmented (ex: scalp hair and eyebrows)
Terminal
Know the locations of:
lunula (whitish moon)
proximal nail fold
cuticle
lateral nail fold.
T/F
Nail plate gets pink in color from underlying vasular nail bed
True
T/F
Fingernails grow 0.1 cm/day
False
They grown 0.1mm/day
(and toenails grow slower than this)
______ glands produce a fatty substance that’s secreted onto the skin surface through the hair follicles
Sebaceous glands
_______ glands are present on all skin surfaces except palms and soles.
Sebaceous glands
There are two types of sweat glands.
_______ glands are widely distributed and open directly onto the skin surface, and help control body temperature.
_______ glands are found chiefly in axillary and genital regions, open onto hair follicles, and stimulated by emotional stress.
Eccrine glands ; Apocrine glands