Our body has three body sections: Head, torso and limbs. Each one has different parts.
Remember that the smallest unit of life in living things are cells.
Millions of cells together make tissues. Tissues together make organs. And organs together make SYSTEMS. Many systems together make an organisim, in this case: THE HUMAN BODY.
Difference between arteries and veins:
- An artery takes/carries blood from the heart to/towards all parts of the body.
- A vein takes/carries blood from all parts of the body to/towards the heart.
Click on the following picture to rate you circulatory system knowledge.
--------------->
Our senses tell us about the world around us. They allow us to interact with our environment.