Medical

An ache is a dull pain that can take a long time to go away.

The Adam's apple is a small bump in the front of a person's neck. It is named after the Bible story of Adam.

It is made by the larynx (voice box) and the thyroid cartilage. The bump is generally more noticeable in boys and men.

An amputee is someone who has had one or more limbs removed. People are most likely to lose a limb through an accident of some kind.

Antlers grow in pairs on the top of the heads of most deer. They can be quite complicated, with many different forks and branches. Male deer grow antlers every year, then the antlers die and the deer sheds them. Antlers are similar to horns, but animals with horns do not shed them every year.

The appendix is a small, finger-like pouch in the lower right side of the belly. It is part of the digestive system and sits near the first part of the large intestine.

The appendix can sometimes get swollen or infected, which is called appendicitis. In that case, doctors may remove it with surgery.

You have two arms, one on each side. They are connected to the rest of your body at your shoulder. Your hands are at the ends of each of your arms.

Arteries are tubes inside the body that carry blood away from the heart.

Arteries carry oxygen-rich blood to all parts of your body. Your biggest artery is the aorta, which starts at the heart and branches out. Your body uses the oxygen and carries the blood back via veins.

In the picture, the arteries are drawn in red.

Your back is the part of your body that is behind you, between your bottom and your neck. The bone running down the centre of your back is called your spine.

A beak, or bill, is the hard mouth parts of a bird. Other animals like turtles that have hard mouths can also be described as having a beak.

Belly or tummy is a slang word for the part of your body where your stomach is.