1. Skiing and the Body systems you use in it
By: Colton D.

2. The Muscular system
In downhill skiing you use almost every muscle you have in your body. You work four of these the most they are Quadriceps, Hamstrings, Core, and Triceps. The quadriceps help hold your thighs in place so you don’t squat too far down or from stand straight up. The hamstrings must work together to stay In the ski’s. The core helps you Do lots of things like keeping your body at a 45 degree angle. The Triceps help you in many ways. It is the most worked muscle. Some of the ways they help you are to help turn and stop using poles.

3. The Digestive System
Before you ski you better have eaten some healthy foods. If you eat really unhealthy foods before you eat you will become fat and skiing will be a lot harder. This system helps you eat the foods you need in order to ski. You should try to eat healthy before you ski because it is better for your body. Your mouth will grind the food and put it into the tube called a esophagus. You know the rest.

4. The Immune System
Thanks to your immune system you can ski healthy. Sometimes you get sick but your immune system fight them off. You really don’t want to ski sick or it won’t be to fun. If you don’t have a healthy immune system your skiing experience might not be the best. You want to eat healthy so you can help your immune system get stronger and have a better skiing experience.

5. The Skeletal System
During downhill skiing you use the skeletal system a lot. Some bones you use are the spine, your leg bones , your arm bones and every bone you have. The spine helps you bend down into your skiing position. Your bones help you move. You have some chances to break something while your skiing. If you during a jump you can break some bone or hurt yourself badly.

6. The Cardiovascular system
In downhill skiing you increase your heart rate which pumps more blood and brings more good things like oxygen into your tissues. Your heart is the resource for blood filtration. You need the heart to live so you can ski. It pumps your blood so that you can have oxygen throughout the body so that you can live to ski.

7. The Excretory System
During downhill skiing you use the excretory system. You need the kidneys to filter your blood. If you damage your kidneys your dirty blood can flow to your heart and you can get hurt and not able to ski. You can get really injured so you can not ski. They filter pee to your bladder separating it from good blood. The kidneys tell the body to make red blood cells. The kidneys constantly react to hormones that the brain sends them. The kidneys filter blood at least 400 times a day. You need your kidneys to clean your blood so you have healthy veins and cells. The rest makes sure you go so you don’t have to hold and have your bladder hurt.

8. The Respiratory System
During downhill skiing you really push your respiratory system. When you have been skiing for a long time your breathing gets harder and you breath more. This helps your lungs get stronger so you can breath quicker in hard situations. You need to breath in order to ski. If you want to go extreme in skiing you push your lungs even more. You push your stomach back in fort more so it gets stronger.

9. The Nervous System
When you are doing downhill skiing you have a chance of getting a spinal cord injury. The spinal cord help you by sending your commands too your body which your body commands. Thanks to your brain you no when to stop our when to get of the ski lift if you don’t there can be some problems. The nerves help you feel things like your pole and when your sitting on the lift without them you might forget your on the lift and never get of or you might drop the pole.

10. Bye