The axon is surrounded by multilamellar structure of myelin. (E) Myelinated nerve fiber reproduced in vitro by coculture of rat dorsal root ganglion neurons and Schwann cells. Myelin segments are ...

Spindle fibers form a protein structure that divides the genetic material in a cell. The spindle is necessary to equally divide the chromosomes in a parental cell into two daughter cells during ...

In skeletal muscle, the cells merge so that the muscle fibres contract in unison. There are many different types of cells in plants. Each type is specialised to do a particular role and ensures ...

They have some features in common: A long fibre (axon) which is insulated by ... Receptors are groups of specialised cells. They detect a change in the environment (stimulus) and stimulate ...