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/plate
lateral 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