Health - Integumentary System and Skin

I picked it off the notes so some may not make sense (middle school level btw :P)

What is included in the integumentary system?

skin, hair, nails, sweat glands

What does skin do?

Protects, absorbs vitamin D, contains nerves

Layers (from topmost to deepest)

Epidermis, dermis, and hypodermis

Epidermis

Outermost and toughest layer, absorbs vitamin D

Dermis

The middle layer, contains sweat glands, hair follicles, and sebaceous glands

Hypodermis

Deepest layer, contains fat

Why do we sweat?

to cool us down (as water in the sweat evaporates, the surface of the skin cools.)

Purpose of hair?

Protection, temperature regulation

How to take care of your skin?

Wash it, eat healthy, drink water, protect yourself from the sun, use moisturizer when needed

Skin problems

Skin cancer, which is the #1 cancer (normally starts very small)

Acronym to spot skin cancer?

ABCDE (Asymmetry, Border, Color, Diameter, Evolving)

What is another name for oil?

Sebum

Where are the sebaceous glands located next to?

Next to the hair follicles

How do pimples form?

Bacteria invade the shaft of the hair where the sebum duct is. The white blood cells then migrate into the duct to attack the bacteria, while the oil gets trapped inside it. This leads to a buildup in cells and leaves a bump on the skin.