In birds, which structure transports the egg from the ovary to the oviduct?

In birds, which structure transports the egg from the ovary to the oviduct?

• A. Infundibulum
• B. Oviduct
• C. Uterus
• D. Cloaca

Answer: (A)

In birds, the egg’s journey from the ovary into the oviduct begins at the infundibulum. This funnel-shaped section of the oviduct has fimbriae that sweep the ovulated yolk from the ovary and guide it into the rest of the oviduct. Once inside the infundibulum, the egg can be fertilized if sperm are present, and it then continues through the oviduct where layers such as albumen, membranes, and the shell are added. The oviduct as a whole is the entire passage the egg travels through, but the infundibulum is the first segment that actually captures and transports the egg from the ovary into the duct. The cloaca is the common exit for waste and eggs, and the uterus (shell gland) is a later region where the shell forms, not the initial transfer from ovary to the oviduct.

In birds, the egg’s journey from the ovary into the oviduct begins at the infundibulum. This funnel-shaped section of the oviduct has fimbriae that sweep the ovulated yolk from the ovary and guide it into the rest of the oviduct. Once inside the infundibulum, the egg can be fertilized if sperm are present, and it then continues through the oviduct where layers such as albumen, membranes, and the shell are added. The oviduct as a whole is the entire passage the egg travels through, but the infundibulum is the first segment that actually captures and transports the egg from the ovary into the duct. The cloaca is the common exit for waste and eggs, and the uterus (shell gland) is a later region where the shell forms, not the initial transfer from ovary to the oviduct.