What are four body components that make up the Integumentary System?
- Skin
- Hair
- Nails
- Cutaneous Glands
How do you calculate how much your skin weighs?
Body weight multiplied by 15%.
What are six functions of the skin?
- Resistance to trauma and infection
- Serves as a barrier to water, ultraviolet radiation, and other harmful chemicals
- Involved in the synthesis of Vitamin D
- Involved in sensation to heat, cold, touch, texture, pressure and vibration
- Thermoregulation - vasoconstriction, vasodilation and sweating
- Social functions including non-verbal expression, self image, and emotional state
What is the definition of Dermatology?
The study and medical treatment of the integumentary system.
What is the definition of Hyperthermia?
Abnormally high body temperature.
What is the definition of Hypothermia?
Abnormally low body temperature.
What is the definition of Sebum?
An oily secretion of the sebaceous glands.
What is the definition of Autograft?
Transfer of skin from one part of the body to another.
What is the definition of Homograft?
Transplant of skin from one person to another.
What is the definition of Xenograft?
Transplant from an animal to a human.
What are three layers of the skin?
- Epidermis
- Dermis
- Hypodermis
Which layer of skin contains hair follicle sebaceous glands, sweat glands, blood vessels, and nerve endings?
The dermis
Which layer of skin contains adipose tissues?
The hypodermis (subcutaneous)
What are three types of hair texture?
- Straight
- Wavy
- Tight curly
What is responsible for Black/Brown hair?
Rich in eumelanin.
What is responsible for Red hair?
Little eumelanin and high in pheomelanin.
What is responsible for Blond hair?
Intermediate pheomelanin and little eumelanin.
What is responsible for Gray/White hair?
Little or no melanin.
What are four major parts of the fingernail?
- Protective covering
- Nail plate
- Nail bed
- Lunula
What are three factors that affect skin color?
- Genetic
- Environmental
- Physiological
What are the four degrees of classification of skin burns?
First degree burn – superficial partial-thickness
Second degree burn – deep partial-thickness
Third degree and Fourth degree burn – full-thickness requiring transplant
What color would the skin be for someone suffering from Jaundice?
Yellowish
What color would the skin be for someone suffering from Cyanosis?
Bluish
