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Skeletal system has less bones then muscular system.

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Muscular system has more bones then skeletal system

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Bones are living tissue made of mostly collagen. Bones get blood from blood vessels which give blood to the cells inside.

The skeletal system is made of bones and joints which are your elbow bones and knee bones.

Bones have 3 layers the outside one is the compact bone second one is the spongy bone and the middle one is the bone marrow.

You have 206 bones in your body and bands called ligaments keep them in place. Your smallest bone is in your middle ear called ossicles and your biggest one is in your thigh.

Joints are made out of cartilage and fluid. Different joints move differently.

Your upper arm connects to the shoulder blade and in between is a ball joint and socket joint which lets your arm move

You need muscles for the skeletal system to work and stretchy tendons connect muscles with bones , if the brain send a message it travels through nerves and then muscles tighten to help you move.

Your skull protects your brain and other organs in your body. Your spine has about 33 bones called vertebra which protect your nerves.

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The skeletal system helps us move

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So the skeletal system gives your body shape and it protects the organs and minerals example your ribs protect your lungs and heart, the bones of your vertebral column (spine) protect your spinal cord, and the bones of your cranium (skull) protect your brain  our body is made out of 206 bones which make our body into shape the body bones join together by fibrous straps called ligaments which are a flexible, rubbery substance in our joints, supports bones and protects them where they rub against each other. Bones are made of connective tissue reinforced with calcium and specialised bone cells Bones are made up of a framework of a protein called collagen, with a mineral called calcium phosphate that makes the framework hard and strong Your skull protects the most important part of all, the brain. You can feel your skull by pushing on your head, spongy bone is located at the end of every long bone Bones also protect internal organs from injury by covering or surrounding them. For example, your ribs protect your lungs and heart, the bones of your vertebral column (spine) protect your spinal cord, and the bones of your cranium (skull) protect your brain

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The muscles helps us lift heavy things

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Muscles, Bones, Brain, AND nerves work together!

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your muscular system has more bones than skeletal system and they help u move and there are more than 599 bones

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the Skeletal system helps our body and it is connected to all other

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When the brain sends a message to a bone the muscle tightens and makes the bone move.

If you want to move your bone your voluntary muscle will move them because you wanted it to.

Circular muscles help you move your eye lids or blink and hold your lips together.

You use a hundred muscles when you walk to push your feet on the floor and move your knee

You have many body organs which are smooth muscles like your stomach.

Cardiac muscles are involuntary muscles which work without you wanting it to. Cardiac muscles and smooth muscles never get tired.

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The skeletal system forms shape of your body helps you move
a connective tissue sticks the bones together

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Bones have a hollow middle where there is bone marrow which makes white blood cells. Your body always needs blood cells and they live for not a lot of time.

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An adult has 206 bones while a baby has more than 300. As you grow older your bones fuse together decreeing the amount of bones. Bones protect your internal organs like the Ribcage protects the and lungs and heart. Skull protects the brain. The bones which run down your back are called The vertebrae. Bones have three layers. The hard outer layer is the compact bone. Inside is the spongy bone. It has many open spaces. Then comes the marrow which is jelly. Some bones have red Marrow. It stores fat.

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I found out that your bones are made up out of 3 layers. I also found out that only if you have your skeleton system you can move and that is because you’re skeleton it the shap of your body.

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Slow twitch muscles work for a lot of time and fast twitch muscles are useful fo going really fast for a few milliseconds.

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When The Heart Send A Message To The Muscles It Is Called Motor Functions

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You need muscles to move. You use them to smile. WE have 600 IN OUR BODY.

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Your Skeletal System Protects Organs Such As Heart, Lungs And Liver

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you move your bones in any physical activity Ex- Running jumping and many others .the bones in your body protect the other organs from damage.full grown adults have about 206 bones in there body and they are all in different sizes and shapes.the femur in your upper leg is the largest bone in your skeleton system in one finger  there are about 27 bones in each finger.there is also something called cartilage and ligaments which connect your bones to each other which is called a joint the joint is usually placed where you can bend your bones.bones and joints move by themselves because they depend on the on the other systems

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Digestive system is a very important system as it helps you digest your food and after the procedure is over the food comes in waste.

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The circulatory system delivers oxygen and nutrients to cells and takes away waste.

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In respiratory system breathing is the process that brings  oxygen in the air into your lungs and moves oxygen and through your body. Our lungs remove the oxygen and pass it through our bloodstream, where it's carried off to the tissues and organs that allow us to walk, talk, and move.
Our lungs also take carbon dioxide from our blood and release it into the air when we breathe out.

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Lungs or respatory system

When you breath hard your lungs work harder and you can breath in more oxogen and your heart has to work harder to spread blood and oxogen in your body.

When you inhale oxogen goes down your wind pipe also called the trachea.

At the end of the trachea there are 2 tubes called bronchi which lead 2 big organs called lungs which is where the oxogen gets picked up by blood and spread around your body.

The lungs inhale air with help of your diaphragm a  muscle under the lungs.

The lungs have a lot of small tubes called bronchioles which lead to the alveoli where all the oxogen gets absorbed into our blood. (There are 600 million alveoli in our body).

Each alveoli has a mesh like covering of blood vessels capillaries

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HEART AND CIRCULATORY SYSTEM

Your veins carry blood to your heart and your arteries spread blood throughout your body. Arteries and veins (blood vessels) are what carry blood to the heart and spread it throughout your body.

There are cells in your body which need oxogen to help your body and it is the bloods job to get the oxogen to them.

When you breath you breath in oxogen which go into your lungs from there with help of the heart and blood they have to go to the other parts of your body and the blood gets them there.

The blood also goes around your body and collects carbon dioxide which is a waste so the blood goes back to the lungs to leave the carbon dioxide we breath out and it picks up more oxogen.

Blood goes to the right atrium where the blood goes into the heart then the blood goes to the tricuspid valve. Valves are there so that the blood flows in the right direction. After the valve the blood goes to the right ventricle then the blood goes through the pulmonary valve and through the pulmonary artery and then to the lungs where all the oxogen gets picked up.

The blood goes through the pulmonary vain and then to the left atrium then finally through the mitral valve and to the left ventricle.

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When you sneeze brain calls your sneeze centre to sneeze,you sneeze when germs come in your nose

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so the digestive syestem starts in the mouth then goes to the esophagus then goes to the stoumuch in the stoumuch the food gets smuged and then goes to your smal intestine where it absorbs the food into nutriens and goes into the large intistine where your non needed nutriens turns into poop and comes out

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It starts in your mouth where the food breaks down.

there are 2 ways to breakdown food. Chemical digestion and mechanical digestion.

chemical digestion is where enzymes in your saliva and salivary amalyse break down bigger molacules of food in to smaller molacules.

Mechanical digestion is where you use your teeth to chew the food.

then the mushy food goes down the esophagus and to the stomach.

in the stomach acids like hydrolyice acid and gets mixed and churned with the pancreas help.

then after 4 hours the food moves to the small intestine where a lot of the foods nutrience gets absorbed into your body.

then to the large intestine where the water gets absorbed.

then the food moves to the rectum and out of your body