My Human Body Name: Esther Sanchez

The Brain Insert facts you leaned about the brain you may also insert 1-2 pictures The brain is in the top part of the head. The bones of the skull protect it. The brain is gray and bumpy. It is the size of a large grapefruit. The brain has many jobs to do. It tells the body how and when to move. The brain tells you what you are seeing, hearing, smelling, or tasting. When you touch something hot, the brain tells you it hurts. The brain is also where you feel anger, sadness, or joy. Messages travel from the body to the brain. Then the right side of the brain tells the left side of the body what to do. The left side of the brain takes care of the right side of the body. The brain has three main parts. The largest part is called the cerebrum. This is where you learn, remember, and think. The cerebrum comes up with new ideas. The second part of the brain is the cerebellum. It is found behind and under the cerebrum. The cerebellum tells the muscles what to do such as walking, running, and playing sports. The brain stem is the last part of the brain. It is below the cerebrum and the cerebellum. It takes care of movements that are automatic. You do not think about automatic movements. They happen by themselves. Coughing, sneezing, and swallowing are all automatic movements. The brain stem tells the heart to beat. It makes you breathe and tells your body to digest food. With its many jobs, the brain is one of the most important parts of the body. It helps keep you alive.

The Heart Describe facts about the heart The heart is a powerful pump. It beats about 100,000 times every day to circulate blood. Each heartbeat sends about one third of a pint (0.16 liters) of blood through the body. The heart continues to work whether you are awake or asleep. The cardiac, or heart, muscle is like tough strands of rope. Unlike other muscles, the heart does not get tired. The heart never stops beating. When a person is active, the heart works harder. When a person is asleep, it slows down

The Lungs Insert the fascinating facts you leaned about the lungs. The average person breathes more than 20,000 times a day! Why do you breathe? And how do your lungs work? The cells in your body need nutrients from food and oxygen from the air. Both produce energy and help you grow. Without these elements, your cells would die. Your lungs take the oxygen you need from the air. The mechanism inside your lungs that makes this possible looks like an upside-down tree. Air enters your body through your nose and goes down your throat to your windpipe. This windpipe branches into two slightly smaller tubes that look like the main branches of a tree. Each tube enters a lung. Inside your lungs, these tubes divide several more times and become even smaller. They resemble the limbs of a tree. Finally, these tiny tubes end in balloon-like air sacs called alveoli (al-VEE-oh-lie). Each tiny alveolus is surrounded by small blood vessels called capillaries. Oxygen molecules from the air you breathe pass easily through the walls of the alveoli and into the tiny capillaries. This is where the blood gets all the oxygen it delivers to the cells of your body.

The Liver List facts about the liver The liver is one of the most important and largest body organs. It has at least 5,000 functions that help to keep the body running smoothly. Blood comes to the liver from the stomach, intestines, and the spleen. This blood has many nutrients in it to give the body energy and other materials that it needs. The liver breaks down these digested nutrients even further. It collects those that will be useful to the body and removes old cells from the blood. It stores and releases others such as glucose sugar, fats, iron, and vitamins, depending on the body's needs. The liver also breaks down certain substances that may be poisonous or toxic to the body. It turns these toxins into harmless substances or sends them to the kidneys to be passed out of the body. This is called detoxification (de-tox-i-fi-CA-tion). Everything we eat, breathe, and absorb through the skin must be purified and detoxified by the liver.

The Stomach Analyze your findings about the stomach Do you ever hear a growling noise when your hungry? The noise does not come from the stomach. It comes from the rather violent churning that goes on all the time in the long tube below your stomach, the intestine. The noise is more noticeable when the intestine also contains bubbles of gas produced by the many helpful bacteria that live there. You will hear noises from movements of the intestines almost any time you put your ear against someone's tummy. Sometimes the noises are louder, and then you may say that your stomach is "grumbling." That rumbling is called borborygmus (BOR-buh-RIG-muss). That may not be a very useful word for most of us, but it's fun to say.

HOW YOUR INTESTINE WORKS Small and Large Intestine Compare facts about the small and large intestine HOW YOUR INTESTINE WORKS The intestine is a long tube made up of two parts. The first part is the small intestine, which is 2.5 centimeters (1 inch) wide and 6.5 meters (22 feet) long. The small intestine receives partly digested food from the stomach and digests it further. The resulting nutrients are then passed through the wall of the small intestine into the bloodstream, and the indigestible food moves along into the large intestine. The large intestine is almost three times wider than the small intestine but only one-quarter as long. It eliminates food that can't be digested from the body in the form of feces. The inner wall of the small intestine is lined with millions of tiny fingerlike projections called villi. The millions of villi increase the inner surface area of the small intestine to the size of a tennis court. That large but compact surface area maximizes the small intestine's ability to pass food into the bloodstream.

Write a complete paragraph on what you learned. The brain is the most important part of our body. It sends messages throughout our body. Our heart is also important it never stops working. It even works as we sleep. The lungs carry oxygen to the blood and delivers it to the cells in our body. The stomach has the job of churning our food on the journey to digestion. The small and large intestines help further the digestion. Our food is finally digested throughout the large intestine. The Liver also has a major job, while our food is digesting the liver cleans it out. The liver purifies and detoxifies everything we eat, breathe and absorb. Our organs are very important and we must help keep them healthy.