Chapter 5 - Integumentary System Flashcards
Name 5 functions of the Integumentary System
- Maintains the body’s integrity
- Maintains temperature
- Converts inactive vitamin D to its active form
- Provides sensory information
- Maintains homeostasis
The integument is the LARGEST system of our body, covering ____% of our body weight and _____in area
16% of our body weight, 1.5-2m^2 in area
The Integument is made up of 2 parts:
- Cutaneous membrane (skin)
- Accessory structures
What are the 2 components of the cutaneous membrane and which tissues do they correspond to?
- Outer epidermis (epithelial tissue)
- Inner dermis
(connective tissue)
What are the organs of the integumentary system?
the SKIN and its accessory structures:
hair
nails
glands
blood vessels
muscles
nerves
Which 2 systems are connected to the integumentary system?
Cardiovascular (blood vessels in dermis)
Nervous (sensory receptors for pain, touch, temperature)
Where is the HYPODERMIS and what is it composed of??
hypodermis is below the dermis and it’s composed of loose connective tissue
The skin has ____ major layers. what are they?
3:
1. outer - epidermis
2. inner - dermis
3. subcutaneous - hypodermis
What are the 8 functions of the skin?
PROTECTION
SECRETION
MAINTENANCE
MELANIN PRODUCTION
KERATIN PRODUCTION
VITAMIN D SYNTHESIS
STORAGE OF LIPIDS
DETECTION OF PRESSURE, PAIN, ETC
The dermis has ___ layers. What are they?
2 layers:
Papillary layer and reticular layer
Which of the dermis layers is on the top?
papillary layer
What is the function of the papillary layer?
Nourish and support the epidermis
What are 2 components of the reticular layer?
Sensory receptors, blood vessels that assist in thermoregulation
A first degree burn goes through which layer(s) of the skin?
Epidermus
Describe the structure of the epidermis.
Top layer of the skin, avascular, stratified squamous epithelium.
