Complex sentence: In the retina and the olfactory bulb, ATP is released by neurons to evoke transient calcium signals in several glial cells such as Muller glia and astrocytes, influencing various homeostatic processes of the nervous tissue including volume regulation and the control of blood flow.
Split into simpler sentences: In the retina and the olfactory bulb, ATP is released by neurons to evoke transient calcium signals in several glial cells such as Muller glia and astrocytes. This influences various homeostatic processes of the nervous tissue including volume regulation and the control of blood flow.