The Basics
What three major VISIBLE parts make up the integumentary system?
Hair, skin, nails
Which layer, top, middle, or bottom, is the epidermis?
Epidermis
How many layers does the epidermis have?
Five
Name the three main types of glands in the integumentary system.
Eccrine glands, Aprocrine glands, Sebaceous glands
What are three reasons we need skin?
Protection from outside dangers like viruses, bacteria
Fluid balance (keeps our blood in place)
Temperature regulation
Protects inner structures
What are the three layers of the skin?
Epidermis, dermis, and hypodermis (aka subcutaneous)
What are nails made out of?
Karatin
All visible skin that we can see is...
Dead skin cells/cornified
Where are eccrine glands found?
Everywhere!
What vitamin does skin produce?
D
What are some parts of the integumentary system that are not visible?
Glands, blood vessels
What are the special cells that give skin its color filled with? (A name for skin pigmentation)
Melanin
Which layer of skin holds hair follicles?
Dermis
Apocrine
Eccrine
Sebaceous
Eccrine
How common is skin cancer in America?
One in five people will develop some kind of skin cancer
What is homeostasis?
Homeostasis is the body working to keep itself in the best, perfectly working state by balancing things like fluids and temperature.
In which layer of skin can you find the nail bed?
Epidermis
If you had a third degree burn, which layer of skin would the burn have reached?
Hypodermis
Apocrine glands
Name three dangers to our skin
Burns, cuts, scrapes, infections
What is the job of collagen and elastin in the skin?
Collagen provides support
Elastin provides elasticity
What is adipose tissue and where is it located?
It is fatty tissue and it is located in the hypodermis
What is the purpose of the oil glands in our skin?
To lubricate it and make it waterproof.
One type of gland opens directly into sweat pores. One connects to hair shafts. Which is which?
Eccrine glands connect to sweat pores
Apocrine connects to hair shafts
Why is it important that our skin has nerves and sensory receptors?
In order to warn us if something is so hot it could burn us, if something is sharp enough to harm us, cold enough that we need more layers of protection, etc.