A patient suspects they may have developed Type 2 Diabetes, where their body is not responding to the hormone, insulin, being released from their pancreas. What body system is this a part of and what...

A patient suspects they may have developed Type 2 Diabetes, where their body is not responding to the hormone, insulin, being released from their pancreas.

What body system is this a part of and what type of specialist would work with the patient in the scenario.