Haemal Arch (Noun)
Meaning
A structure arising ventrally from a vertebral centrum and enclosing the caudal blood vessels.
Classification
Nouns denoting body parts.
Examples
- The haemal arch is a bony structure that provides protection to the caudal blood vessels in vertebrates.
- In some species of fish, the haemal arch is highly developed and serves as an attachment point for muscles.
- The haemal arch arises ventrally from the vertebral centrum and forms a protective canal around the caudal blood vessels.
- During embryonic development, the haemal arch forms from the sclerotome, a type of mesenchymal tissue.
- In many vertebrates, the haemal arch is a key component of the caudal skeleton, providing support and protection to the tail.