Anatomy

The adenoids are small lumps of soft tissue found at the back of the nose. Healthy adenoids are part of the immune system in young children.

Find out more about your adrenal glands, which sit on top of your kidneys. They make several important hormones, including adrenaline and cortisol.

An anal fissure is a small tear or split in the skin that lines your anus. Learn what causes anal fissures and how to prevent them.

Your bladder stores urine (wee). It works with your kidneys to remove waste products through urine. Learn more about your bladder here.

Blood flows through blood vessels to carry oxygen, nutrients and waste around the body. Find out about different types of vessels and role of blood.

You inherit your blood type from your parents. Learn more about blood types and why receiving the wrong type of blood can be dangerous.

Bones, muscles and joints make up the musculoskeletal system. Learn more about their function as well as conditions and injuries that affect them.

Your central nervous system (CNS) is made up of your brain and your spinal cord. Learn more about its role and the different parts of the brain.

The circulatory system includes the heart, blood and blood vessels. It moves oxygen and nutrients around the body and removes carbon dioxide.

Your digestive system breaks down the foods you eat so they can be absorbed into the body and used for energy and nutrients. Discover how it works.

Ear wax (cerumen) is produced by tiny glands in the ear canal and helps keep the ears clean. Find out how to treat a build-up of ear wax.

Ears play a crucial role in hearing and balance. Learn about the outer, middle, and inner ear, common ear problems, and when to seek medical help.

Find out more about the endocrine glands and hormones in your body, such as the pituitary gland, thyroid gland and adrenal glands.

Learn how your eyes work, common eye problems, and tips for maintaining healthy vision. Regular eye check-ups are important for optimal eye health.

The female reproductive system includes organs such as the uterus (womb), ovaries, fallopian tubes and vagina, as well as hormones.

An unhealthy gut microbiome impacts your physical and mental health. Learn how you can improve your gut microbiome.

The heart pumps blood around the body to supply body cells with nutrition and oxygen. Find out about how it works and related health problems.

The endocrine (hormonal) system influences your metabolism, growth and other functions. Learn more about what it is and related conditions.

Hormones are responsible for many bodily functions including growth, repair, maintenance and triggering a number of bodily processes. Learn more here.

Your body's immune system is designed to protect you from, or get rid of, infection. Learn more about how the immune system works.

The kidneys' main functions are to filter or 'clean' your blood of waste products and help control your blood pressure. Find out how they work.

The liver is one of the largest organs and plays an important role in keeping your body healthy. Learn how to care for your liver.

Your lumbar spine supports movement and protects your spinal cord. Injury is common. Learn about lumbar spine conditions and how they are treated.

Lymph nodes filter blood and fight infection. They also play an important role in cancer diagnosis. Find out more about lymph nodes and how they work.

The male reproductive system includes external genitals and internal parts including the prostate gland. Learn how it works and what can go wrong.

Your mouth and teeth are important for eating, drinking, breathing, speaking and smiling. Find out how to care for your mouth and teeth.

Your nervous system controls many of your body’s functions, including walking, speaking and other activities. Learn more about how it works.

The neuromuscular system includes all the muscles in your body and the nerves serving them. Learn more about how your neuromuscular system works.

Your nose and throat are part of your respiratory system. Learn more about their functions and conditions that can affect your nose and throat.

The pancreas is a vital organ that helps the body digest food and control blood sugar levels. Read about its role and how to keep it healthy.

Your parathyroid glands are small glands that are found in your neck and make parathyroid hormone (PTH). Find out more about PTH here.

Find out about the pineal gland. This is a very small gland in your brain that makes the hormone melatonin, which controls your internal body clock.

Your pituitary gland is deep in your brain and is known as your body's 'master gland'. Learn more about the role of your pituitary gland here.

Red blood cells carry oxygen around your body and transport carbon dioxide to your lungs. Learn more about how your red blood cells work.

Your respiratory system brings oxygen into your body and helps to remove carbon dioxide. Learn more about how it functions and how to keep it healthy.

Skin is your largest organ. It helps control your body temperature and prevent infection. Discover its layers, functions, and how to keep it healthy.

Stem cells have the potential to develop into specialised cells. They are being researched to treat medical conditions, but are controversial.

Your thyroid gland sits in the front of your neck and helps control your metabolism. Read about the different thyroid hormones and thyroid problems.

Your urinary system removes waste from your blood and makes and stores urine. It includes your kidneys and bladder. Learn how to keep it healthy.

White blood cells are part of your immune system. They help detect and deal with infections. Learn about health problems involving white blood cells.