| Popis: |
This bachelor thesis consists of two main parts. First of them is the theoretical compilation of information and facts about pectoral girdle ? its form, function and appearance in different groups of vertebrates. Further I focused on the development of forelimb, the origin of pectoral girdle, and on the way how this structure looks in fossil ancestors of tetrapods. Second part is the practical one, I studied the ontogenetic development of the pectoral girdle of three species of Caudata: Ambystoma mexicanum, Lissotriton vulgaris and Pleurodeles waltl. The appearance of pectoral girdle was also explored in some adult species of salamanders. This study was based on observation and photographic documentary of double-stained specimens and creation of 3D models of pectoral girdles. |
