The engineer inspected the slide valves before starting the steam engine.

During the dissection, the anatomist carefully examined the Thebesian valves to understand their role in coronary sinus flow.

During the anatomy lab, the student carefully examined the semilunar valve to understand how it prevents blood from flowing back into the ventricle.

The semilunar valves prevent blood from flowing back into the ventricles after systole.

During the colonoscopy, the surgeon noted inflammation around Bauhin's valve, which was causing intermittent obstruction.

During the dissection, the professor pointed to Tulp's valve and explained its role in regulating the flow from the ileum to the cecum.

During the autopsy, the pathologist examined the ileocecal valves for signs of inflammation.

During the diagnostic endoscopy, the physician noted inflammation near the Tulpius valve and scheduled a follow-up.

During the surgery, the surgeon inspected the ileocaecal valve for signs of inflammation.

The surgeon carefully inspected the colic valve before proceeding with the resection.