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The Muscular System

FUNCTION

You are never perfectly still. Not even when you are asleep. Because your muscles are always at work, they have many different functions. Muscles are everywhere and their main function is to help you move. Skeletal muscles are attached to bone by [|tendon], a thin white thread. For example every time you bend your arm, you are using bone and muscle. While one muscle contracts the other returns to its original size, allowing you to move your arm. Muscles are made up of a bundle of thin cells called muscle fibers. Muscle s Move when they get signals from the brain. Those signals are called electrical signals. They come from the nerves in the brain and the spinal cords. Aside from helping you move, muscles also help with circulation. The Heart is the only organ in which cardiac muscle is found. Cardiac muscle is in the heart, very much like when you bend your arm, but in the heart cardiac muscle contracts, pumping blood throughout your body.

DIFFERENT TYPES OF MUSCLE

Whenever you move, you are using skeletal muscle. When you’re sick and need to throw up, you are using smooth muscle. Whenever you’re heart beats you are using cardiac muscle. Skeletal muscle is attached to bone by tendon and ligaments. Whenever you move, you are using bone and skeletal muscle. Aside from skeletal muscle,there is smooth muscle. Sooth muscle is on the inside of most internal organs. When you are sick and need to throw up you’re smooth muscle is contracting and that is what pushes up the food. When your heart pumps blood throughout your body, you are using cardiac muscle, because the heart consists of cardiac muscle. Every time your heart beats, your cardiac muscle are contracting. In almost every part of your body you are using some type of muscle. Without these types of muscle, most of your body parts wouldn’t work.

OTHER SYSTEMS MY SYSTEM WORKS WITH

Muscles are in almost every part of your body, different types of muscle, different places in your body. The muscular system mainly works with the skeletal system, because every time you move, you are using skeletal muscle. It is attached to bone by tendon. Your skeletal system is very important to your muscular system! The muscular system also works with the female reproductive system. When the woman is ready to give birth, smooth muscle contracts to help push the baby out of the uterus. The heart itself is a muscle. It consists of cardiac muscle, only found in the heart. Whenever the muscle contracts, it pumps blood throughout your body. Circulation and blood are a part of the [|circulatory system]. In the digestive system, the esophagus, the stomach and many other organs have smooth muscle in them. Smooth muscle is on the inside of most internal organs. In the esophagus when you need to throw up the muscle contracts to let the food up. And when you eat, the smooth muscle pushes the food back down the esophagus. The muscular system wouldn’t work without the nervous system. What the [|nervous system] does is exactly this: The brain sends electrical signals to the nerves in the muscle, and that is what makes the muscles move. Inside most internal organs, is smooth muscle. Inside an organ called the bladder is smooth muscle. The bladder is an organ in the excretory system that holds urine and when the smooth muscle contracts, it allows the urine to be held in or let out. In almost every single system in your body there are muscles. You may even say you are muscle!

HEALTH

Muscles are fragile, like a baby. They can get hurt very easily. Something that happens to muscles commonly are strains and sprains. Both injuries happen a lot. Sprains are when your ligaments are overstretched or they are also called ‘mild sprains’ Other times when a ligament is torn it is called a ‘severe sprain’ Muscles such as your leg muscles and back muscles are more commonly sprained. Aside from sprains there are strains. Now, strains are very distinct from sprains because strains are when your muscles have been overstretched, not torn. Strains can hurt immediately or several hours later, unlike sprains that will usually hurt right away. With strains the area that is injured will feel tender and sore, and look bruised and swollen. You may have a bit of difficulty walking when you strain something, but when you sprain something you might not be able to walk or move the injured part at all. There are several things you can do to prevent any kind of injuries. One thing you can do is to stretch before doing and kind of physical activity is to stretch and warm-up your muscles. Also do not lift any very heavy objects or put a large amount of pressure on a specific muscle or group of muscles. If your injury is severe and still needs help healing, you can go to a [|physical therapist]! Physical therapists help you get your muscles and bones to heal. If you do these things you can keep your muscular system healthy!

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