VAN 211: Veterinary Histology and Embryology (2+2)

POLARITY OF EGG

• The egg consists of two poles namely animal and vegetal pole.
• The animal pole is the one where the nucleus of the egg lies.
• The opposite pole, where the yolk is accumulated is called the vegetal pole. This type of arrangement is seen in amphibians, reptiles, and birds.
• In domestic animals and man, the nucleus is at the center of the egg and the animal pole refers to the pole where the polar bodies are accumulated.