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Must-know Human Body Facts for Kids

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Last updated date: 05th Mar 2024
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Let’s Learn Some Interesting Facts About Human Body

We all only get one body, and we must keep it healthy if we are going to have long and happy lives. The human body is a complex system of cells, tissues, organs and organ systems that work together to support life. The human body is composed of numerous parts. Human anatomy is the study of these parts. Each part of the body serves a certain purpose or performs a specific function.


One of the most essential things to understand about the body is that it's made up of many different organs and parts. Every parent must introduce a few concepts of the human body to preschoolers, to develop interest. In this article, we'll go over some of the basic parts of the human body according to science.


Human Anatomy for kids


Human Anatomy for kids


Human Anatomy for Kids

Each system in the biology of a human body has a specific purpose. Your skeletal system provides support and structure to your body, allowing you to stand. By fighting off diseases, your immune system keeps you healthy. Each of these systems interacts with the others. For example, your skeletal system's bones would be useless without the muscular system to help them move.


Organ Systems in the Human Body

Given below are the various organ systems in the human body.

The Musco-skeletal System 

Bones and muscles are found throughout the body. In addition to walking and running, the human body can crawl, jump, and climb. The number of bones in a human body for kids can reach 300 at birth. Age, however, leads to the fusion of bones. Adults have 206 bones in total. Locomotion is assisted by muscles, which are specialised tissues. Contraction and relaxation of muscles in that region cause limbs to move. In addition to joints, muscles are what allow bones to bend and stretch. 


The Musco-skeletal System


The Musco-skeletal System


The Circulatory System

Your circulatory system is made up of your heart and blood arteries. The heart's function is to circulate blood throughout your body. The left side of the heart transports oxygen-rich blood from the lungs to various regions of the body. The right side of the heart circulates blood to the lungs, where it is oxygenated. 


The Circulatory System


The Circulatory System


The Nervous System 

The body has a long and complex path of nerves in the arm, neck, and brain. The nerves relay information to your brain so that you can process it and react. The human nervous system is made up of two parts-the central nervous systems (CNS) and the peripheral nervous system (PNS). Coordination and control in body systems are regulated by the nervous system. It helps us to respond to stimuli/information received from the outside and react to it. For example, whenever we touch any hot object, we immediately pull our hands away from it because our nervous system informs us that the object is hot and harmful to us.


The Human Nervous System


The Human Nervous System


The Respiratory System

The lungs are the most important part of the respiratory system. The lung's purpose is to move air into and out of the body. Oxygen from the air you breathe enters the bloodstream via small blood vessels. It then attaches itself to red blood cells and travels throughout the body. Carbon dioxide is present in the blood and is also removed by the lungs. When you exhale, you are removing carbon dioxide from your body that it no longer requires.



The Respiratory System


The Respiratory System


The Digestive System

Digestion begins when we break food down into small pieces in our mouth using our teeth, tongue, and saliva. Food then passes via the oesophagus and into the stomach, where stomach acids further break it down. It travels from the stomach to the small intestine. Here, your body extracts nutrients from food and transports them to different body parts via the circulatory system. Finally, the digested food is sent to the large intestine, where it exits your body and beyond.


The Digestive System


The Digestive System


The Excretory System

The excretory system is a group of organs that have to do with getting rid of the waste products from our bodies, such as urine, faeces, and sweat. The waste excreted by each organ is different. Faeces are mainly made up of bacteria, dead cells, hormones, mucus (snot), water, and weight-bearing chemicals. Urine contains urea and chloride


The Excretory System


The Excretory System


The Reproductive System 

The reproductive system of a human is made up of organs that include: the ovaries, fallopian tubes, testes, prostate gland and some other organs. The birth canal leads into the vaginal canal which in turn leads into the vulva where external genitals can be found as well as an opening to the cervix. 


Interesting Facts for Kids

The following are some of the human body facts for kids:

  • Nearly 37 trillion cells make up the body system.

  • Approximately 39 trillion cells make up the microbial biome of our bodies, including bacteria and fungi.

  • Every day, the average body system breathes 22,000 times.

  • An average kidney filters out about 2 quarts of waste and water every day based on 200 quarts of blood (50 gallons).

  • The organs and body systems of kids develop up to 80% within three years of age.


Summary

From the article human body for kids, we have now understood that the body is a highly complex machine. There are many different organ systems in the body, each one with its distinct purpose. The major organ systems in the human body include the musculoskeletal system, circulatory system, nervous system, respiratory system, digestive system, excretory system and reproductive system. 


The organ systems of the human body work together to keep humans alive and healthy. Like the respiratory system helps us to breathe, the digestive system helps in the digestion of food and the excretory system helps in the removal of waste products. We hope that you have enjoyed learning some facts about the human body with us. Approximately 100 billion nerve cells are found in the human brain.

FAQs on Must-know Human Body Facts for Kids

1. What is the smallest part of your body?

The cell is said to be the smallest part of the body which is alive. It is the structural and functional unit of life.

2. Which is the largest bone in the human body?

The femur is one of the most researched bones in human anatomy and forensic medicine. As the longest bone in the human body, it is well preserved in skeletal remains.

3. What is the weakest bone in the body?

The weakest and softest bone in the human is the clavicle or collarbone. Since it is a tiny bone which runs horizontally across your breastbone and collarbone, it is simple to shatter.