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Home > All Images > 1995 > September > 29 Sep 1995

Images Dated 29th September 1995

Available as Framed Photos, Photos, Wall Art and Gift Items

Choose from 5 pictures in our Images Dated 29th September 1995 collection for your Wall Art or Photo Gift. Popular choices include Framed Photos, Canvas Prints, Posters and Jigsaw Puzzles. All professionally made for quick delivery.


Illustration of the human reflex arc Featured 29 Sep 1995 Print

Illustration of the human reflex arc

Reflex arc. Illustration of a human reflex arc. Sensory nerve endings (lower right) detect a stimulus, such as pain. The nervous signal passes along the sensory nerve cell fibre to the spinal cord (left), where synapses transmit the signal to a motor nerve cell via an interneuron. The sensory nerve cell body is shown at centre left in a ganglion just outside the spinal cord. The motor nerve cell transmits the signal to an appropriate effector organ, in this case a muscle in the arm. Reflexes like this happen involuntarily, before the brain has had time to receive or interpret the stimulus

© FRANCIS LEROY, BIOCOSMOS/SCIENCE PHOTO LIBRARY