The morphometric studies on the left ventricular bands (or false tendons ) was carried out in the hearts of men, oxen, pigs, sheep and dogs by using stereological method.

本文用成年人、牛、猪、羊和狗的心脏对左心室条束（亦称假腱索）进行了体视学研究。

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However, contractive magnitude of the failing hearts in situ of guinea pigs could not return to normal with the two extracts.

这两种提取物都不能使豚鼠在体衰竭心脏的收缩幅度恢复至正常水平。

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Objective:To observe the effect of compound Blood Resin capsules on the coronary blood flow in the hearts of isolated guinea pigs.

目的：观察复方血竭胶囊对豚鼠离体心脏冠脉流量及对垂体后叶激素收缩冠脉、降低冠脉流量的影响。

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When the virus was injected into a region of the hearts of seven guinea pigs, five later had heartbeats which originated from their new pacemaker.

BBC: Virus rebuilds heart's own pacemaker in animal tests

The scientists mixed it with the VEGF and injected the combination into the hearts of two groups of test animals, rats and pigs, in which they had induced heart attacks. (Pig hearts bear significant similarities to human ones.) In both cases, instead of being washed away, the VEGF stayed on the lattice and slowly got released over several weeks.

WSJ: Nanotechnology Holds Promise for Heart Patients

And some surgeons think they have found a way to make that dream come true: by husbanding pigs not for their chops but for their hearts, livers, lungs and even their neurons.

ECONOMIST: Pigged out