Biofunction monitor

A Biofunction monitor on a Galaxy-class ship

The biofunction monitor was a small display located at the head of some biobeds. It gave continually-updated information on patient vital signs, such as pulse, respiration, temperature, and brain activity. They were a staple of starship sickbays since the NX-class.

The biofunction monitor seen in Star Trek: The Motion Picture was also used for seven years on Star Trek: The Next Generation and was one of the only surviving graphics after the sets were remodeled. The same set piece was used for Star Trek: Voyager and Star Trek Nemesis, but the panel was replaced with modern okudagrams.
In an example of life imitating art, the computer displays now common in hospitals were inspired by the biofunction monitors on the original Enterprise.