chalaza
Sign in to saveThe chalaza (; ; : chalazas or chalazae ) is a structure inside bird eggs and plant ovules. It attaches or suspends the yolk or nucellus within the larger structure.
Wikidata facts
- Instance of
- anatomical structure
- Part of
- egg
- Image
- Chicken egg01 monovular.jpg
Show 1 more fact
- described by source
- The Nuttall Encyclopædia
Sources (2)
via Wikidata · CC0
~2 min read
Encyclopedic overview
4 sectionsContents
- In animals
- In plants
- Chalazogamy
- Notes
The chalaza (; ; : chalazas or chalazae ) is a structure inside bird eggs and plant ovules. It attaches or suspends the yolk or nucellus within the larger structure.
==In animals== thumb|The contents of a chicken egg with chalaza clearly visible. In the eggs of most birds (though not in eggs of reptiles), the chalazae are two spiral bands of tissue that suspend the yolk in the center of the white (the albumen). The function of the chalazae is to hold the yolk in place. In baking, the chalazae are sometimes removed in order to ensure a uniform texture.
Excerpted from Wikipedia’s “chalaza” article, available under the CC BY-SA 4.0 licence.