The changes in the university curriculum have made necessary the vertical and horizontal integration of contents that are taught in morphology sciences. In this study, students of the Morphology and Human Development Module of the cohorts 2006 and 2007 participated. In 2006 the students (n=83) developed the thematic unit of locomotive apparatus in a chronologicaly and sequentially integrated way. In 2007 (n=102) this same unit was developed in a totally integrated way, in form of learning object from the macroscopic, microscopic and embryology perspectives. A theoretical instrument was designed to evaluate the content of the unit, the approaches of validity and reliability were determined (a=0.79), and then, it was applied to the 2006 and 2007 students. Higher and significant results (p=0.02) were obtained in the group that developed the content by means of integration under the form of learning object, belonging to the cohort 2007. The results indicate that the integration of contents in morphology improves the theoretical learning of them.