1. Skin is connected to muscle pretty securely. It was super hard to remove!
2. Muscles are connected to both the skin (duh, see #1) and the bones.
3. Bones are underneath both the muscle and skin (depending on location).
4. Skin constricts the range of motion of parts of the body. Once it's removed, the muscles can extend farther.
5. Break a bone? Forget about it. The range of motion gets all out of whack. Parts that fluidly moved before hand look wobbly and sloppy. Yikes!
6. There's blood inside the bones. That's weird--we didn't expect that!
So we wanted to know more and decided we should return back to our investigation ideas. Many students wanted to use images like x-rays or other imagine simulators to help us figure out more!
We had all these questions about blood, so we turned to using a "zoom-in" investigation request, also scientifically known as using a microscope! We saw some pretty incredible things with our virtual microscopes:
We're starting to see just how important blood is! The plasma has both water and food particles in it. The platelets help with clotting and scab formation, while the white blood cells help fight off infection. The red blood cells carry oxygen.
So if blood vessels are found all throughout the body, blood has to be really important, right?
We also read about blood to see that it actually is a mixture comprised of plasma, platelets, white blood cells, and red blood cells.
Nerves looked way different than the round red blood cells (which are round to help with moving efficiently around the body). They have these long branches (similar to branches on a tree or roots in the ground). We also read about nerves to see how they are important in sending messages to our brains for both voluntary (somatic) actions and involuntary (autonomic) actions like breathing.