Decsribe Your Activity/Movement

Here is my example description of kicking a soccer ball:

Nervous ®Muscular ®Skeletal®Bone Break

pg.13-15     pg. 15, 18-19 pg 10,11,15, 19  pg 12,13

When I am out on the soccer field, I am sensing that I am playing soccer. My eyes send messages through my sensory nerves that tell my brain where the ball is.

The goal of soccer is to kick the ball into the net. The cerebrum in my brain knows the goals of the game and sends the message to my cerebellum, which controls movement, to kick the ball. The cerebellum then sends the kick message down my spinal cord, through the sciatic nerve in my hips, and down the nerve cells in my legs.

When the kick message goes to my leg, the motor neurons tell the muscles on the back of my leg to contract first to lift the lower part of my leg. Then, the motor neurons tell the rectus femoris muscle and the inner and outer vastus muscles to contract. This sweeps my leg down with power to kick the ball. At the same time, motor neurons are also telling my longus muscles in my calves to contract so that my foot points upward to strike the ball the right way.

Unfortunately, right before my foot strikes the ball, another player smashes his cleat right into my calve, and breaks my tibia bone in my lower leg. Pain messages rush to my brain on sensory neurons. Many blood vessels in my leg are damaged. Next, blood flows into the broken bone and makes a hematoma that stops the bleeding. After going to the hospital and getting a cast, bone cells begin to form in the area of the hematoma. They try to join the two broken ends together and reconnect the bone. The bone building cells turn to spongy bone, which eventually turns into compact bone. Compact bone takes many months to form and heal the break.

 

Here are links to the diagrams:

Muscular System

Skeletal System

Nervous System