Nervous system cells. Computer artwork showing neurons (nerve cells,purple),astrocytes (green) and a blood vessel (along right). Neurons are responsible for passing information around the central nervous system (CNS) and from the CNS to the rest of the body. Each nerve cell comprises a body surrounded by numerous extensions called dendrites,which collect information from other nerve cells or from sensory cells. Each neuron also has one process called an axon,which passes information to other nerve cells,or to effector cells such as muscle fibres. The axons appear segmented as they are surrounded by a myelin sheath. Astrocytes provide support for the neurons. They surround and regulate synapses and supply neurons with nutrients | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Vernon, Tim |
Taille de l’image : | 4808 px × 3656 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |