Welcome to How It Works, the magazine that explains everything you never knew you wanted to know about the world we live in. Loaded with fully illustrated guides and expert knowledge, and with sections dedicated to science, technology, transportation, space, history and the environment, no subject is too big or small for How It Works to explain.
Welcome to HOW IT WORKS BOOK OF THE HUMAN BODY
50 Amazing facts about the human body • There are lots of medical questions everybody wants to ask but we just never get the chance… until now!
Cell structure explained • The human body has over 75 trillion cells, but what are they and how do they work?
Types of human cell • So far around 200 different varieties of cell have been identified, and they all have a very specific function to perform. Discover the main types and what they do…
Inside a nucleus • Dissecting the control centre of a cell
What are stem cells? • Understand how these building blocks bring new life
Your brain • The human brain is the most mysterious – and complex – entity in the known universe
Inside the human eye • Uncovering one of the most complex constructs in the natural world
How the eye focuses • The tiny rings of muscle that make your vision sharp
How ears work • The human ear performs a range of functions, but how do they work?
What are tonsils for? • What purpose do these fleshy lumps in the back of our throats serve?
How do humans speak? • The vocal cords and larynx in particular have evolved over time to enable humans to produce a dramatic range of sounds in order to communicate – but how do they work?
All about teeth • The biological structures that are so versatile they enable us to eat a well varied diet
Anatomy of the neck • Explore one of the most complex and functional areas of the human body
How the human skeleton works • Without a skeleton, we would not be able to live. It is what gives us our shape and structure and its presence allows us to operate on a daily basis. It also is a fascinating evolutionary link to all living and extinct vertebrates
The human spine • The human spine is made up of 33 vertebrae, but how do they support our bodies while also allowing us such flexibility?
Joints • For bones to function together, they are linked by joints
How do muscles work? • Muscles are essential for us to operate on a daily basis, but how are they structured and how do they keep us moving
How does the arm flex?
Skin colour explained • What is melanin and how does it affect the tone of our skin?
How skin grafts work • When our body’s largest organ is damaged, sometimes it needs a helping hand to heal
Under the skin • Find out more about the largest organ in your body…
Heart attacks • What causes heart attacks and how do they kill?
How heart bypasses work • When too little blood is getting to the muscles of the heart, a surgeon can bypass the blockages using the body’s own vessels
Kidney function • How do your kidneys filter waste from the blood to keep you alive?
Kidney transplants • The kidneys are the body’s natural filters. You can survive on just one, but when that fails you may need a transplant
Useless body parts • Why have humans and other animals stopped using certain organs and functions which were once crucial for survival?
Evolution’s leftovers
How the spleen works • Perhaps not as well known as famous organs like the heart, the spleen serves vital functions that help keep us healthy
How the liver works • The human liver is the ultimate multitasker – it performs many different functions all at the same time without you even...
