No nucleus to provide more space for haemoglobin. White blood cell Defend the body against disease. Large cells that contain a nucleus. There are 2 types: Lymphocytes – make antibodies.

The nervous system is the body’s direct communication system. It’s made up of the body’s many nerve cells. These cells work together in a network that sends and receives signals from one ...

Adhesion GPCRs are a group of cell-surface sensors associated with many body functions and diseases. However, they are not yet sufficiently understood to be exploited for therapies. Scientists have ...

This clip could be used as part of body systems topic to illustrate the function of the biceps and triceps. Students could label a diagram of the biceps/triceps antagonistic pair of muscles.