15thc perception on swallowtail merlons?

[MarcoP]

Looks more like hanging "lungs and trachea" to me versus "animal hearts".

Regards,
Dana Scott

The heading in Latin and German certainly says "hearts". Maybe sliced in half and hung up to let the blood out? No idea.

I agree, the text is clear. 
EDIT: but Italian "coratella" refers to entrails in general, therefore I am not 100% sure that lungs can be excluded. There are individual chapters for liver, spleen and intestine; my opinion is that this illustration is specifically about hearts indeed.


I read the image as couples of hearts with their arteries intertwined so that a spike can go between them for hanging (AI image to illustrate what I mean).