Fig. 4a, b.

Fast EPSPs in myenteric S neurons from mice deficient in P2X₂ (A.) or P2X₃ (B.) receptors. a Recordings from S neurons in P2X₂^+/+ (left) and P2X₂^−/− (right) mice. The fast EPSPs recorded from neurons in tissues from P2X₂^+/+ mice were inhibited by PPADS (10 μM) while those from neurons in P2X₂^-/- tissues were unaffected (right). b Fast EPSPs recorded from S neurons in P2X₃^+/+ (left) and P2X₃^−/− (right) mice; both were inhibited by PPADS (10 μM). Adapted from [78, 89]. Copyright © Journal of Physiology