Posted by: Pdfprep Category: USMLE Tags: USMLE certification, USMLE exam questions, USMLE practice exam Post Date: December 13, 2020 Pdfprep2020-12-13T03:25:30+00:00 What type of cell releases insulin?A . b cellsB . a cellsC . plasma cellsD . D cells View Answer Answer: A Author Pdfprep