What feature is characteristic of a Venables plate?

A Venables plate is distinguished by its circular holes, which are specifically designed for securing blood samples during laboratory procedures. The circular holes allow for the efficient placement and stabilization of vials, making it easier to manage samples while maintaining sterility and organization. This feature is crucial for laboratory technicians and veterinary nurses who require precision in sample handling to avoid contamination or misidentification.

In comparison with other potential designs of laboratory instruments, the Venables plate's unique circular holes serve a functional purpose that is different from straight edges, which might be found in other types of plates or equipment that are not specifically designed for blood sample management. The curved structure and metallic framework are not defining characteristics of a Venables plate; rather, these features might relate to different types of laboratory tools or equipment designed for other specific functions in the veterinary field or other scientific applications.