This thesis is titled Biological Material Collection in the Development Context. The bachelor thesis is divided to several parts. Blood, important representatives, access to the bloodstream, tools, blood drawing, the present collection systems and last but not least the collection rooms. In the first part of the thesis we dealt with the blood itself. With what the blood actually is. The next part is dedicated to the important representatives. Here we can learn about Galen, the doctor of gladiators, or William Harvey, the discoverer of the blood circulation. Cristannus de Prachaticzis another important representative in this chapter, but also Jan Janský, the "inventor" of the blood groups. The third part deals with the access to the bloodstr...