Medical

A dose is a measured amount of medicine that you give to someone when they are sick.

You have one ear on either side of your head. You use your ears to hear with. You have two ears shaped the way they are so that you can tell which direction sound is coming from.

Your elbow is the joint halfway up your arm, so you can bend your arm. If you hit the back of your elbow it feels funny, so people call it your funny bone. Your funny bone is actually just a nerve.

You have two eyebrows, one above each eye. An eyebrow is a strip of hair between your forehead and your eye socket. Eyebrows help to stop sweat running from your forehead into your eyes.

Eyelids are pieces of skin that cover your eyes. When you close your eyelids, you can't see anything. The edges of your eyelids have hairs growing on them called eyelashes.

Fangs are large, pointed teeth that meat-eating animals like dogs and cats have. Unlike tusks, fangs don't usually grow out of the animal's mouth.

The femur is the long bone in your thigh.

The femur connects the hip to the knee. It is one of the strongest bones and helps you stand, walk, and run.

The fibula is the smaller of the two bones in your shin. The larger bone is called the tibia.

You have four fingers on your hand and one thumb. You use your hands to hold things, and your fingers to make things.

If you look closely at the ends of your fingers you will be able to see lots of small lines in your skin. Whenever you touch something, the oil on your skin means you leave a mark of these lines, called a fingerprint. Everyone has different fingerprints, and at a crime scene the police will be looking for fingerprints so they can try and find out who was there.