The activity of brain cells directly affects our thoughts and actions.

Stem cell research is opening up new frontiers in medicine.

I go to the gym every day to build my muscles.

This river is three long.

The myelin sheath protects nerve cells and helps transmit nerve signals.

Neuroglia play an important supporting role in the nervous system.

Microglia are immune cells in the brain, playing a role in maintaining the health of the nervous system.

Cone cells are the main visual receptors for recognizing colors.

Cell biology is the study of the structure and function of cells, which are the basic units of life.

Cytogenetics is a science that studies the structure and function of chromosomes and genes.