Serial histology and blockface images, mouse heart, 300 sections
<p>Mouse hearts were excised after Schedule 1 culling according to the UK Home Office guidance on the Operation of Animals (Scientific Procedures) Act of 1986, washed swiftly in 37°C normal Tyrode solution (NaCl 140 mM; KCl 5.4 mM; MgCl2 1 mM; HEPES 5 mM; Glucose 10 mM; CaCl2 1.8 mM; pH 7.4, 3...