The organisation of the human body

Is bladder a human organ?

This organ is the main control centre for the body and is responsible for all bodily functions.

This organ protects the body from harmful bacteria like a waterproof barrier.

The organs of hearing and balance. Our ears have three sections: outer ear, middle ear and inner ear.

All human bodies have millions of cells, varying in size and shape. A cell can only be seen under a microscope.

The groups of cells that work together in large numbers to perform specialised functions are called: