Fig 5. [Ca²⁺]_i oscillations in acinar cells stimulated with ACh display concentration-dependence.

(A) and (C) OGB-1 loaded acinar cells in a tissue slice. Scale bar in Fig 5A 10 μm and in Fig 5C 20 μm. (B) [Ca²⁺]_i oscillations in an acinar cell in response to ACh concentrations ranging from 5 to 50 nM. The corresponding acinar cell is marked with thin broken line and asterisk in (A). (D) [Ca²⁺]_i oscillations cell in an acinar cell in response to ACh concentrations ranging from 50 to 1000 nM. The corresponding acinar cell is marked with thin broken line and asterisk in (C).