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Biology for Kids

The Skin

What is it?

We all have skin. It covers our entire body and keeps the good stuff in and the bad stuff out. But what exactly is skin? We'll get into the details below, but for starters the skin is an organ. Just like the heart or the brain. It's an important organ that performs many functions to enable us to live.

Integumentary System

The skin is part of an important organ system called the integumentary system. The integumentary system consists of the skin, hair, nails, and exocrine glands.

Functions of the skin

The skin is multipurpose, meaning it has a lot of functions. It's our first line of protection against the outside environment, it houses one of our five senses, it absorbs sunlight for vitamin D and heat, and regulates our internal temperature. Layers of the skin

The skin has three primary layers. Each one has its own function. See the picture below for more detailed parts of the skin:

A. Epidermis
B. Dermis
C. Hypodermis
D. Blood Vessels
E. Stratum Germinativum
1.Hair Shaft
2.Stratum Corneum
3.Pigment Layer
4.Stratum Spinosum
5.Stratum Basale
6.Arrector Pili Muscle
7.Sebaceous Gland
8.Hair Follicle
9.Papilla of Hair
10.Nerve Fiber
11.Sweat Gland
12.Pacinian Corpuscle
13.Artery
14.Vein
15.Sensory Nerve ending (for touch)
16.Dermal Papillary
17.Sweat Pore


Experiment:
Skin Temperature - How does our skin lower or raise our temperature?

Activities

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More Biology Subjects

Cell
The Cell
Cell Cycle and Division
Nucleus
Ribosomes
Mitochondria
Chloroplasts
Proteins
Enzymes

The Human Body
Human Body
Brain
Nervous System
Digestive System
Sight and the Eye
Hearing and the Ear
Smelling and Tasting
Skin
Muscles
Breathing
Blood and Heart
Bones
List of Human Bones
Immune System
Organs

Nutrition
Nutrition
Vitamins and Minerals
Carbohydrates
Lipids
Enzymes

Genetics
Genetics
Chromosomes
DNA
Mendel and Heredity
Hereditary Patterns
Proteins and Amino Acids

Plants
Photosynthesis
Plant Structure
Plant Defenses
Flowering Plants
Non-Flowering Plants
Trees
Living Organisms
Scientific Classification
Animals
Bacteria
Protists
Fungi
Viruses

Disease
Infectious Disease
Medicine and Pharmaceutical Drugs
Epidemics and Pandemics
Historical Epidemics and Pandemics
Immune System
Cancer
Concussions
Diabetes
Influenza


Science >> Biology for Kids

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