If a stimulus is exerted on the skin (e.g., through touch or heat), the affected receptor immediately transfers an electrical impulse to the next nerve cell. In this way, the impulse travels across several nerve cells and finally reaches the spinal cord and then the brain, which ultimately processes the information.
Three animations show the process of transmitting impulses in different degrees of detail.
There are no other media directly related to this file.
Grade 5 to 6; Grade 7 to 9; Grade 10 to 13
Nervous system; Sense organ; Skin; Stimulus reception
Siemens Stiftung Media Portal