Lack of blood with cut throats

[All4One]

It has often been speculated or assumed that the lack of blood around the cut throats of Ripper victims was to do with blood seeping into the victim's clothing. But I'm watching the episode of Medieval Murder Mysteries on the Yesterday channel concerning the Borgias and an expert forensic pathologist has been explaining that, once the jugular vein and carotid artery have been cut and the windpipe severed, air goes down the windpipe into the heart causing an embolism and stopping blood circulation within a few seconds.

For me, this makes me rethink the whole question.

[SirJohnFalstaff]

Lack of blood is also, for some researchers, due to strangulation beforehand. If the heart isn't beating or beating faintly, the loss of blood is less intense.