Human Body - The most amazing machine...

What do you think is the most amazing machine in the universe?

Keep thinking...how amazing, and well designed machinery is human body. It contains many other separate, interconnected machines. Each machine (heart, lungs, intestines, etc.) runs at its own individual speed, but all function in a specific, predetermined relationship to each other. There are basically 11 organ systems in the body that control all of the functions viz. circulatory, respiratory, digestive, excretory, nervous and endocrine, immune, integumentary, skeletal, muscle and reproductive systems.



Bright Spark: The Brain and Nervous System: The nervous system controls all the others. The central nervous system consists of the brain and the spinal cord, which serve as the main control centers for the body and process all incoming and outgoing messages. The peripheral nervous system includes all the nerves in your body that bring messages to the central nervous system and from the CNS to the muscles. Whereas the nervous system mainly uses electrical signals to communicate between cells, the endocrine system relies upon chemicals, called hormones, to send long distance messages through the body. The human brain is the central command system for the whole body. It’s a mass of about 180-100 billion neurons. Neurons have multiple synapses that create a network of over 100 trillion connections!

The Beat Goes On: The Heart and Circulatory System: Heart of the Matter The heart is one big pump made of muscle fibres. There are so many blood vessels that, laid out end to end, would span 60 000 miles.

Just Breathe Fresh Air: The Respiratory System: The Lungs and Respiratory System Humans have two lungs side by side, but they’re not the same size. The left lung is slightly smaller to make room for the heart. Each lung is divided into lobes. The right lung has three lobes, the left, two.

Feeling Hungry: The Digestive System - Breaking Down Digestion – Acrostic The digestive system begins with the mouth, where teeth mash food, the tongue moves it around, and saliva lubricates it and begins digestion. Upon swallowing, food travels down the oesophagus and into the stomach where acid kills bacteria and breaks down food further. The liquid food then enters the small intestine where the acid is neutralized, and enzymes break down fat, protein and carbohydrates for absorption by tiny hairs called villi. After travelling through 20 feet of small intestine, food passes into the large intestine, or colon, where water is absorbed and bacteria both extract and manufacture important vitamins. The colon is five feet long. The final stop is the rectum, where indigestible food matter and gas are passed through the anus as faeces and flatulence. The study of the digestive system is called gastroenterology.

Attack! The Immune System: The human immune system is the military of the body. It is comprised of white blood cells and antibodies. These seek out and destroy foreign bodies including viruses, bacteria, parasites, fungi and abnormal cells. White blood cells are created in bone marrow are carried in the bloodstream and lymphatic system.

The Reproductive System - Circle of Life - Baby Talk A woman’s reproductive organs include a pair of ovaries that form eggs and the uterus, where a baby gestates until it’s ready to be born. A man’s reproductive organs include the testes, where sperm is formed, and a penis for delivering sperm into the uterus. When an egg and sperm cell fuse as a result of sexual intercourse, conception occurs and a baby begins to grow.

To the bone: The Skeleton Humans are vertebrates, meaning they have a backbone or spinal column. An adult skeleton has 206 bones. A baby has 300 bones at birth and some fuse together as they grow. Half of these bones are in your hands and feet! The largest and strongest bone in the body is the femur. The smallest bones are in the middle ear.

Let’s Move:Mighty Muscles: Appreciation The human body is incredibly flexible and able to move in thousands of ways, all thanks to 320 pairs of skeletal muscles. Muscles are made when muscle proteins form strands of muscle fibre. These then form bundles which make up larger skeletal muscles. Skeletal muscles occur in pairs, when one muscle group contracts, the opposing pair relaxes.

Now guess the seven wonders of the world? Ancient, Modern and All time....Its to see, to hear, to touch, to taste, to feel, to laugh and to love.

How we ignore basic things and run behind the exterior worldly things....

Stumbled upon these book;

Inside Out Human Body: Explore the World's Most Amazing Machine-You! - by Luann Columbo. It has answers about the way our bodies work as it takes us through a journey of the muscular system, the “bone zone,” the digestive system, circulatory system and 47-mile long nervous system, along with introducing younger readers to different objects, mostly involving bodies, by peeling away the layers.

If Our Bodies Could Talk - Operating and Maintaining a Human Body; Author: James Hamblin; It is a more intricate, delicate, complex machine than any device we have -- but we know more about other machines than this. Hamblin explores the human stories behind health questions that never seem to go away—and which tend to be mischaracterized and oversimplified by marketing and news media. He covers topics such as sleep, aging, diet, and much more.


The body breaks down because of various reasons: genetics, the environment, intake of junk food and lack of sleep. Health is the first of our life - most important for survival and to be healthy, one need to take utmost care of ones body and mind. It has tremendous power to tolerate any amount of nuisance which normally we carry on. As machines need maintenance to run efficiently on continuous basis, so is the case with our bodies. It needs care for its survival.

Take Care of your health! Have a Healthy, Happy life. Be Wealthy and at peace. Enjoy the spark, and the beat. Appreciate.