10 Functions of Skin

The 10 functions of skin are:
Protection - physical, chemical, immunological, antimicrobial
Appearance
Cushion
Homeostasis
Thermoregulation
Manipulation - nails
Sensation
Nutritional - vitamin D synthesis
Hormonal - testosterone synthesis
Pheromonal


Mnemonic: Psycho ADHD Children Have Terrible Mood Swings 'N' Harass Parents

Source: Davidson's Principles and Practice of Medicine, 20th ed.

The 1-to-6 of Skin Structure

Skin & and its appendages have/are
- 1 organ
- 2m-sq in area, 2 structures in subcutis (dermal papilla, subcutaneous vessel)
- 3 layers (epidermis, dermis, subcutis)
- 4kg in weight, 4 layers in epidermis
- 5 layers in basement membrane (basal keratinocyte, basal cell membrane, lamina lucida, lamina densa, sub-lamina densa)
- 6 structures in dermis (sweat gland, sweat duct, sebaceous gland, hair, superficial vascular plexus, deep vascular plexus)

Source: Davidson's Principles and Practice of Medicine, 20th ed.