cyclic GMP

Cyclic GMP (cGMP) is a small signaling molecule in the body that helps regulate various functions, like blood vessel dilation and sensory perception. It acts as a messenger inside cells, transmitting signals triggered by hormones or other stimuli. When activated, cGMP causes repeated actions—hence "cyclic"—such as relaxing muscle cells in blood vessels to widen them or transmitting signals in the eyes for vision. Enzymes like phosphodiesterases break down cGMP to terminate its signaling. Overall, cGMP is essential for controlling processes that keep the body functioning smoothly and respond appropriately to different signals.