This file is from Wikimedia Commons and may be used by other projects.
The description on its file description page there is shown below.
Summary
DescriptionGlucose Homeostasis for Wikipedia.jpg
English: The pancreas maintains blood glucose levels by releasing various hormones, particularly glucagon and insulin, keeping the levels within a very narrow range. This is accomplished by the opposing and balanced actions of glucagon and insulin, referred to as glucose homeostasis.
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.