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overview of the infundibulum of the oviduct of a pigeon (HE)
The infundibulum forms the beginning of the oviduct. It comprises a funnel which captures the ovulated egg followed by a neck or tubular endpart (tubus infundibularis), also called chalaziferous region. The glands of the latter (glandulae tubi infundibulares) secrete the chalaziferous layer (stratum chalaziferum) of the albumen and the chalazae of the shelled egg. There are no glands in the funnel. The wall of the neck is thicker, it displays the classical structure of a tubular organ and it forms primary, secondary and tertiary folds.
This section shows the tubus infundibularis.