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. Author manuscript; available in PMC: 2008 Nov 28.
Published in final edited form as: Invest Ophthalmol Vis Sci. 2005 Sep;46(9):3281–3287. doi: 10.1167/iovs.04-1465

Figure 6.

Figure 6

Effects of 4-AP on electrical and mechanical activity. A. Retinal MVSM cell membrane potential measured in current-clamp mode before, during and after washout of 4-AP. Solid black line represents the average trace obtained from 5 arterioles and the dashed lines above and below represent the S.E.M. B. Digital images of a vessel exposed to 4-AP (10 mM). In the presence of 4-AP some cells undergo small contractions (arrows in centre image). Movie 1 shows the contractions induced by 4-AP in this vessel.