Skin Flashcards
Name one specific mechanism the skin has to prevent microbial entry
It’s outer structure is like shingles of a house
How is the skin involved in keeping the bones strong?
Vitamin D synthesis
The main protein in the epidermis
Keratin
The main protein in the dermis
Collagen
Dermis
Structural strength of skin
Processed into leather
Dense irregular connective tissue
Epidermis
No blood vessels
Resists water lost the most 
Hypodermis
Not a part of skin, anchors it to underlying structures
Half of body’s fat is found here
Compared to epidermis, dermis has more
Hair follicles, collagen, fibroblasts, capillaries, adipose tissue 
The most abundant cells in epidermis
Keratinocytes
Layers of epidermis in order from deep to superficial
- Stratum basale
- Stratum spinosum
- Stratum granulosum
4 Stratum lucidum
S Stratum corneum
The outermost protective layer of dead cells full of keratin is the stratum:
Corneum
The proliferative layer of epithelium is the stratum
Basale
The superficial layer of dermis that anchors the epidermis is the
Papillary layer
What are stretch marks (striae)?
Tears in the dermis
What specific structure gives rise to the ridges in fingerprints and footprints?
Dermal papillae
No matter a person’s skin color, the ____ is the same
Number of melanocytes
Conditions and their color/mechanism
Albinism: white, genetic
Pallor: white, reduced blood flow
Vitiligo: white, autoimmune
Jaundice: yellow
Cyanosis: blue
Erythema: red
A mole (nevus) is a benign overgrowth of
Melanocytes
Liver disorders and hemolytic anemias are associated with this skin color:
Yellow
Males appear “hairier” because of a higher proportion of:
Terminal hairs
The main structural protein in hair and nails is:
Keratin
Dividing cells that produce hair are found in the:
Hair matrix
Sensory receptor detecting movement of the hair shaft:
Hair root plexus
Unlike depilatories or laser hair removal, electrolysis is considered permanent because it destroys the:
Hair matrix, stratum basale
