Systems

Subjects

For a general view about the body and diseases you can click through these subjects.

Blood

Blood is your body’s transport system. It flows through your entire body, delivering oxygen and nutrients and disposing of waste. But blood does a lot more, it ensures that your body temperature remains stable, it forms a crust when you cut yourself and it can neutralise harmful substances and pathogens.

Chromosomes

There are chromosomes in every cell of your body. These chromosomes contain your DNA or genetic material, which determines how you look and how your body works. Chromosomes are made up of small pieces of DNA with a fixed place on the chromosome. Such a small piece of DNA is called a gene.

Organs and organ systems

Each body contains a variety of organs. Each of those organs has its own function. They work together and influence each other so that your body can function well and you stay healthy.

Hormones

Hormones are substances produced by your body itself. They are indispensable for your development and your daily functioning. Your body produces many different types of hormones, such as the thyroid hormone or sex hormones, e.g. testosterone and oestrogen.

Immune system

Your immune system protects you from intruders such as bacteria and viruses, so you don’t get sick.

Skeleton

Your skeleton is made up of bones. Some of them are connected by a joint, for example, your arms, legs or fingers. A joint thus consists of two separate bone ends that can move independently from each other.
Your joints are very important, if something is wrong, you will notice it immediately, i.e. the joint hurts and you’re restricted in your movements.

Brain and the nervous system

Your brain is in your head. It’s connected through your spinal cord to an extensive network of nerves that run through your entire body, the peripheral nervous system. Your brain and spinal cord together form the central nervous system.

Miscellaneous

There are also disorders or diseases that result in physical and/or mental symptoms without a direct cause being found. Examinations don’t indicate any abnormalities. But that doesn’t mean that all is well physically, you can still suffer from symptoms that affect your daily functioning and your development.