Stimulus and response

In the body 'coordination' means making things happen at the right time by linking up different body activities. Humans and other animals have two organ systems which do this. The first is the nervous system. Let's look at that after stimulus and response as well as receptors.

Stimulus and response
 If you're nerves are working properly, you will be able to respond to the following example in real life. (Or would you?)
E.g. You see a football coming your way, what would u do?
a. Stand there and get hit in the face
b. Move away without standing there/ duck/ catch it, before getting admitted into the hospital?

I think everyone would choose option b, if not get ready to have a football in your face!

Another situation is where you smell something great (or something that you love), you mouth starts to secrete saliva.

Those are examples of  stimulus and response.
A stimulus is a change in an animal's surroundings.
A response is the reaction taken for that change.

A summary of the sequence that happens is,

Stimulus --> Receptor --> Coordination --> Effector --> Response

This will be explained in the next post.

Coordination

In coordination, your nervous system comes in handy. Also your eyes and brain come in handy too, not only to read though! Do you have any idea on what your parts of the eye are? What about your brain? Let's find out, shall we? The next post will start this! Hope you ace coordination!

Good luck!