Migration of connective thecal cells after ovulation. An ultrastructural study

This paper describes the fine structure of the rabbit connective thecal cells in the developing corpus luteum 20 h after mating. These cells are characterized by an irregularly shaped soma containing the nucleus and the bulk of organelles and many thin and long prolongations. The observations reported here suggest that the migratory movements of the front thecal cells could be mediated by an anchoring contraction machinery of the cell prolongations.