Integumentary System Flashcards
(8 cards)
1
Q
- Considered to be the largest system and organ of the body
- made up of skin, hair, nails, and glands
- forms outer boundary of the body
A
Integumentary System
2
Q
What are the functions of the integumentary system
A
- Protection from radiation, water loss, drying, and invasion of microorgansims
- control body temp
- detection of sensation
- secretion of waste products
- production of vitamin D
3
Q
- outer layer
- made up of four to five sublayers (strata)
- Innermost layer supplies cells that move up to the next strata
- cells continue to pick up keratin as they pass through strata
- outermost layer contains lifeless keratin filled cells that fall off
- contains melanocytes that produce skin color
- no blood supply
A
Epidermis
4
Q
- Corium “true skin”
- innermost layer
- contains nerve and blood supply
- also contains appendages of the skin
- provides strength to the skin
- stores water and electrolytes
A
Dermis
5
Q
- sweat glands
- Coiled, tubelike structures in the dermis
- produce and transport sweat to the skin surface
- sweat evaporates and cools the body
A
Sudoriferous glands
6
Q
- Modified sweat glands found in the ear
- secrete cerumen (earwax)
A
Ceruminous glands
7
Q
- oil glands
- connected to hair follicles
- Secrete sebum that oils the hair and lubricates the skin
A
Sebaceous glands
8
Q
- layer of tissue below the dermis
- connects dermis to the surface of muscles
- made up of adipose tissue, elastic fibers, and fibers
A
Subcutaneous tissue