Albumin Secretion Site in Oviduct

Correct Answer: Magnum

The Magnum is the longest part of the oviduct (38 cm) and is responsible for secreting albumin (egg white). The egg spends about 3 hours in the magnum.

Oviduct Parts and Their Contributions

• Infundibulum (10 cm, 15 min): Collects yolk from ovary; site of fertilization
• Magnum (38 cm, 3 hours): Secretes albumin (egg white) ✔
• Isthmus (10 cm, 1h 15 min): Secretes inner and outer shell membranes
• Uterus (10 cm, 21 hours): Secretes shell, shell pigment, and cuticle
• Vagina (5 cm): Holds egg until oviposition