Illustration of a motor neuron and muscle fibre. When a signal from the nervous system reaches the neuromuscular junction, acetylcholine is released by a motor neuron, or nerve cell. This chemical messenger binds to receptors on the muscle fibre membrane, which begins a chemical reaction within the muscle. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Science Source / Spencer Sutton |
Bildgröße: | 3435 px × 2875 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |