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1. Nerve cells have bodies, like other cells, but they also have axons and dendrites to carry electrical impulses around the body.

2. The spinal cord is surrounded by the vertebrae, or bones of the spine. The word vertebrae is the plural of the word vertebra

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nervous system:
this system can tell your brain that lets say you got a paper cut a way you can know that because your nervous system tells your brain that you've got a paper cut

some important parts of this system is the cns (central nervous system) this is the command center of the body formed by the brain and spinal cord then you have the peripheral nervous system where its made up from all nerves in the body except the ones in the spinal cord next the nerve cells or neurons lastly the synapse.

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I learned that the circulatory system is called that because your blood circulates in your circulatory system . I also learned that without the circulatory system our cells would not get what they need from the respiratory system and digestive system .

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Musculoskeletal: has bones,cartilage,muscles,that work inside when you stand,run,walk or exercise?

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1. the digestive system helps break down food into molecules that the cells can use

2.  some important parts of the digestive system are the small intestines and large intestines.

1.the nervous system carries information from your body to your brain, and from your brain to the rest of your body

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1.The excretory system
helps by breaking down your food that can't go into you.
2.Musculoskeletal
The skeleton is hard frame of bones that gives body structure and protects important body parts like organs,heart,lungs.

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What i learned in the artical circulatory is that it talks about blood flowing through your body and it flows around and around. molecule oxygen glucose and amino acids we need these types of molecules to function.

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1.The excretory is made of three organs one is the kidney the bladder and the skin and more in the body system like lungs,liver,intestine  help you move the waist  of the body but the kidneys bladder and skin are part of the excretory system.

2.The musculoskeletal helps us move around and stay up right and the musculoskeletal system is made out of bones muscles and cartilage and connects to your tissues to support your whole body.

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1.  circulation sytesm : the body system transports molecules to all the cells of the body

2.    Respiration system : the body system takes in oxygen and realeses carbon dioxide

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1. you have a flap in your throat called epiglottis that keeps food from getting in the respiratory system
2.the reason your blood and your blood cells are red is because they have a type of protein in it that gives it that color

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This body system includes the lungs the trachea. Also calls the windpipe and the nose and the mouth. The respiratoy system brings oxygeninto the body and moves carbon dioxide out.

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1.I learned that the blood vessels get smaller and smaller, just like the lungs!

2.I also learned that protein helps red blood cells too by giving them the ability to pick up oxygen.

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1.One  thing i learned is that,muscles work together to keep the body upright and moving, but there’s one more category of tissue that makes the musculoskeletal system work.

2.A other thing that i learned is The skeleton can help keep us upright, but there are lots of things it can’t do, like move on its own. Bones and cartilage need muscle to help them get from place to place.

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1. Excretory breaks down waste and moves it out of ur body. Its made of three main organs the Bladder, the skin, and the kidneys.

2.The Musculoskeletal system is made of boned,Muscles, and cartilage.Without them you would be unable to move. The cartilage also gives the bones and joints a little bit of flexibility which is why they can bend.

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1.what i learn is that certain molecule oxygen, glucose, and amino acids in order to function. These molecules are carried in the blood, which is part of the circulatory system. As the heart pumps, it moves the blood through blood vessels that become narrower and narrower and branch out in all directions.

2.that the red blood cell carries the oxygen through the body to give oxygen to other cells in the human body. And a special protein called hemoglobin gives the red blood cells to pick up oxygen and it gives the other cells oxygen.

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excretory: your sweat is a way for your body to get rid of waste ( mostly salt)

musculoskeletal: cartilage is a soft matirial in between your joints, it makes your bones be able to move smoothly and not grind agaist eachother makeing your movements more stiff and causing mild to extreme pain. its also the stuff that your nose and ears are made of.

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Excretory:
Our body doesn't take everything in our body because your body needs molecules, but some of the substances you take in are either harmful or simply not something that you can use.

Musculoskeletal:
Your musculoskeletal system is made out of bones,muscles,cartilage,and connective tissues which it supports your whole body but without you parts you'd just be a pile of soft tissues, unable to move.