 |
| Previous Image | Next Image |
| Description: (a) Many sensory receptors are neurons that directly sense stimuli. (b) Others are specialized epithelial cells that sense stimuli and secrete a neurotransmitter that stimulates nearby sensory neurons. In both cases, when stimulated, the neurons send action potentials to the CNS, where the signals are interpreted.
Picture Stats: Views: 1222 Filesize: 94.46kB Height: 1196 Width: 850 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=1153 |