Medical department
The medical department was a science  aboard the  incorporating doctors and medics.

After the M-113 creature infiltrated the Enterprise, Uhura declared a medical department alert, asking doctors and medics to acknowledge. ()

After Leonard McCoy overdosed on cordrazine, captain Kirk lamented that the medical department knew as little as he did. ()

During the 2267 crisis on Deneva, Kirk requested analysis by the medical and life sciences departments. ()

During certain time periods in Starfleet history, notably 2230s through 2250s, the mid 2270s, and late 2270s through 2350s, medical was its own division. and wore a uniform separate and distinct from the sciences division.

Spacecraft sections