As part of our science work this term we have been finding out about the heart, the lungs and blood vessels to understand how the human circulation and respiratory systems work. We were able to look more closely at some animal hearts and lungs Seeing the lungs and the heart in one piece also helped us to see how they work together, where they are positioned in the body and how they are connected.
We were also able to 
see the chambers of the heart and see the strength of the heart muscle . We were amazed by the walls of the aorta and could see why they had to be so thick to protect the heart when the oxygenated blood is pumped out of it 
to reach the rest of the body.