When muscle cells are viewed under the microscope, one can see that they contain a striped pattern (striations). This pattern is formed by a series of basic units called sarcomeres that are ...

The synaptic cleft, meaning the distance between two nerve cells or between a nerve cell and a muscle cell, is just 10 to 50 nanometers—too small for conventional microscopes.

Michael Duchen, an expert in mitochondrial biology at University College London, has studied the cell’s tiny powerhouses for more than 30 years, but has struggled to model some conditions caused ...

Almost all animals and plants are made up of cells. Animal cells have a basic structure. Below the basic structure is shown in the same animal cell, on the left viewed with the light microscope ...