Layers
The outermost layer of skin is made of completely keratinized, dead stratified squamous cells and is avascular.
What is the Epidermis
These cells, are found in the bottom layer of skin (stratum basale) and produce a dark pigment that protects DNA from harmful UV radiation
The epidermis might be water-resistant, but the body still loses water through sweat, and this process of evaporation through the skin.
What is transpiration?
These specific ridge-like projections are what create fingerprints
What are dermal papillae
These phagocytic cells are found in the stratum spinosum and initiate immune responses against pathogens.
What are dendritic cells?
Dermal blood vessels undergo vasoconstriction to conserve heat, but go through this process to release it.
What is vasodilation?
This layer is also known as the hypodermis, and is made up of areolar and adipose tissue, however, it is not technically considered part of the integumentary system
What is the subcutaneous layer?
This protein is found in red blood cells and binds to oxygen, and also contributes its bright red color to the skin when it binds to oxygen.
What is hemoglobin?
The skin sometimes blocks some chemicals but absorbs others, making it suitable for certain transdermal medications. This process is called
What is selective permeability?