Nervous System Gallery
Available as Framed Prints, Photos, Wall Art and Gift Items
Choose from 9 pictures in our Nervous System collection for your Wall Art or Photo Gift. Popular choices include Framed Prints, Canvas Prints, Posters and Jigsaw Puzzles. All professionally made for quick delivery.

Diagram of Pavlovs findings on conditioned salivary reflex
Diagram of Pavlov's findings on conditioned salivary reflex. D: organ of touch and temperature; N: 1-6 analysers; S: salivary gland; Q: saliva secreting centre in the medulla oblongata; M: muscle; R: motor centre in the spinal cord. Ivan Pavlov (1849-1936) was a Russian physiologist who carried out famous research in the 1890s and 1900s into conditioned reflexes in dogs. He found that a dog trained to associate food with the sound of a bell would salivate when the bell sounded even when no food was forthcoming
© Ann Ronan Picture Library / Heritage-Images