BLASTODISK Meaning and
Definition
-
A blastodisk is a term used in embryology to describe a specific stage in the development of certain organisms, particularly those that exhibit discoidal meroblastic cleavage. It refers to a circular or disc-like cluster of cells that forms on the surface of the yolk during early embryonic development.
In discoidal meroblastic cleavage, which commonly occurs in fish, reptiles, and birds, the yolk is too large and concentrated to undergo complete division. As a result, only a small portion of the embryo, referred to as the blastodisk, actually undergoes cell division, while the remainder of the yolk remains relatively undifferentiated.
The blastodisk consists of a single layer of cells called the blastoderm, which covers the yolk and contains the embryonic cells that will give rise to the future organism. As development progresses, the cells of the blastoderm will divide and differentiate into the various germ layers, which will later form the different tissues and organs of the developing organism.
The blastodisk is a crucial embryonic structure as it marks the initiation of embryonic development and provides the foundation for the subsequent formation of the embryo. It acts as a site of cell division and differentiation, ensuring the proper growth and organization of the developing organism.
Overall, the blastodisk is a specialized structure that plays a vital role in the early stages of embryonic development in certain organisms, particularly those with discoidal meroblastic cleavage.
Common Misspellings for BLASTODISK
- vlastodisk
- nlastodisk
- hlastodisk
- glastodisk
- bkastodisk
- bpastodisk
- boastodisk
- blzstodisk
- blsstodisk
- blwstodisk
- blqstodisk
- blaatodisk
- blaztodisk
- blaxtodisk
- bladtodisk
- blaetodisk
- blawtodisk
- blasrodisk
- blasfodisk
- blasgodisk
Etymology of BLASTODISK
The word "blastodisk" is derived from two Greek roots: "blastos" meaning "sprout" or "germ", and "diskos" meaning "disk" or "circle". In embryology, the blastodisk refers to a circular, disc-like structure found on eggs of some animals, where the embryo develops. The term was coined based on the shape and function of this structure during early embryonic development.
Infographic
Add the infographic to your website:
