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Thromboembolic stroke

A thromboembolic stroke happens when a blood vessel is blocked by a blood clot.
Thrombosis is the formation of a blood clot. When a clot detaches itself from a chamber of the heart and is released into the circulation, it will come to a stop where the blood vessel narrows. It can therefore block a blood vessel – an artery or a vein – or a cardiac chamber: it is then termed an embolism. The blood can no longer get past and the organs are no longer supplied with blood.

Trace element

A chemical substance present at very low concentrations in the human body, a trace element has a mass below 5 g in a man weighing 70 kg. The main trace elements are: iron, copper, zinc, iodine and selenium.


Transamination is the transfer of an amino acid group to a keto acid to form a new amino acid and a new keto acid.

Reaction: AA1 + AC 2 => AA2 + AC 1