Illustration of pain receptors. A presynaptic neuron releases pain neurotransmitters (red spheres), which connect to the receptors of the synapse. To counteract this, a neuron will secrete endorphins (blue spheres), which bind to receptors, blocking pain neurotransmitters from binding with the receptors. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Science Source / Spencer Sutton |
Taille de l’image : | 2760 px × 3540 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |