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Problem and Solution, featuring the Immune system.

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       You’re out playing with your friends, when you trip and scrape a hand or a knee and it starts to bleed. You go home and clean it, then put a bandage with some neosporin over the cut. Now it's time for your immune system to go to work.  You just cut your knee or hand, and now bacteria is in your bloodstream. The bacteria starts to attack cells and parts of your body. This is a problem because your cells have jobs to do, and if they can’t do their jobs, things can get out of hand. Your body’s solution to this is to activate one of your immune systems, the innate immune system. The innate immune system is a network of defenses and attacks. These only attack to keep out anything bad. Things like sneezing and coughing along with some white blood cells are all meant for this purpose. The white blood cells are Neutrophils, Monocytes, Basophils, Eosinophil, and small amounts of NK cells (natural killer cells). These are most of the things in the innate immune system. So when the i
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The Nervous System

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            Did you know you can use your nervous system without even trying? The nervous system is a network of cells, called nerve cells or Neurons, these cells are connected to the organs all over your body. These cells are a part of a connection that sends signals to your spinal cord and brain (The organs that are actively a part of  the nervous system). The connection is routed through out your body. The signals that are sent can be something like noticing the change of temperature around you, or touching something. So the simplest things can trigger a signal that is sent to your brain!  These signals are sent to your spinal cord, so they can be sent to your brain. The brain processes the signal and puts it into a thoughts or actions. Your brain creates actions by sendin g a signal to the spinal cord to move limbs and muscles. Or it tells you to complete an action, such as to put on a sweatshirt because it’s cold outside. It even tells a part of the body to move because it’s pin
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