SKIN DIAGRAM Lets Label it Up SKIN Diagram

SKIN DIAGRAM Let’s Label it Up!

SKIN Diagram - LEFT • Epidermis • Dermis • Hypodermis (subcutaneous)

SKIN Diagram - RIGHT • Hair shaft

SKIN Diagram - RIGHT • Stratum corneum • S. lucidum • S. granulosum • Stratum spinosum • Stratum basale

SKIN Diagram - RIGHT • Sebaceous (oil) gland

SKIN Diagram - RIGHT • Arrector pili muscle • Nerves

SKIN Diagram - RIGHT • Hair follicle • Papilla of hair bulb • Adipose

SKIN Diagram - RIGHT • Sudoriferous (sweat) glands

Why is this a “mutant” section of skin? • Stratum lucidum is only present in hairless areas of skin

How does the skin do it? • In lower layers of the epidermis cells are dividing because they are close to the blood supply of the dermis. • As cells are pushed up to surface they die off and gain more keratin.

NAIL DIAGRAMS Let’s Label it Up!

TOP Nail Diagram – on LEFT • Lunula • Cuticle

TOP Nail Diagram – on RIGHT nail body/plateral nail fold

Sagittal View Nail Diagram – on LEFT • Nail root • Nail matrix

Sagittal View Nail Diagram – on RIGHT • cuticle nail body/plate • free edge • bone/osseous tissue • stratum basale •

Why do nails look pink? • Nails look pink due to the blood supply of the dermis

What area of the nail is responsible for nail growth? • The nail matrix is responsible for nail growth. -> The lunula appears white due to the thickened stratum basale underneath