HUMAN HEART

INTERIAL AND EXTERNAL STRUCTURE OF HEART

HUMAN BRAIN

HUMAN BRAIN PARTS AND FUNCTION

• PART OF BRAIN
• FUNCTION OF BRAIN
• 

PART OF EYES

The Parts of the Eye

You can check out different parts of the eye by looking at your own eye in the mirror or by looking at (but not touching) a friend's eye. Some of the eye's parts are easy to see, so most friends will say OK. Most friends won't say OK if you ask to see their liver!

Big as a Ping Pong Ball

The eye is about as big as a ping-pong ball and sits in a little hollow area (the eye socket) in the skull. The eyelid protects the front part of the eye. The lid helps keep the eye clean and moist by opening and shutting several times a minute. This is called blinking, and it's both a voluntary and involuntary action, meaning you can blink whenever you want to, but it also happens without you even thinking about it.

HUMAN EYE

EYE

Your eyes are at work from the moment you wake up to the moment you close them to go to sleep. They take in tons of information about the world around you — shapes, colors, movements, and more. Then they send the information to your brain for processing so the brain knows what's going on outside of your body.

You can see that the eye's pretty amazing. So, come on — let's take a tour of its many parts.

system of human body

• SYSTEMS IN HUMAN BODY
•                 SkeletaSystem
• Muscular System
• Cardiovascular System
• Digestive System
• Endocrine System
• Nervous System
• Respiratory System
• ImmuneLymphaticSystems
• Urinary System
• Female Reproductive System
• Male Reproductive System
• Integumentary System

Explore the human body like never before! With hundreds of interactive anatomy