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. 2011 Jun 8;1(4):576–601. doi: 10.1098/rsfs.2011.0037

Figure 10.

Figure 10.

Ultrasound guided microinjection into the spinal canal of a mouse embryo. Progressive penetration to the target tissue is shown (ac). The elastic nature of most tissues makes guidance challenging as shown in (b) where deformation significantly modifies the projected trajectory.