What function does the pancreas perform regarding blood sugar levels?

The pancreas plays a crucial role in regulating blood sugar levels by secreting hormones, primarily insulin and glucagon. Insulin is released when blood sugar levels rise, such as after eating, facilitating the uptake of glucose into cells for energy and promoting the storage of excess glucose in the liver as glycogen. Conversely, when blood sugar levels drop, glucagon is released to stimulate the liver to convert glycogen back into glucose and release it into the bloodstream.

This hormone regulation ensures that blood sugar levels remain stable, preventing issues like hyperglycemia (high blood sugar) and hypoglycemia (low blood sugar). The pancreas's ability to produce and secrete these hormones makes it a key player in maintaining homeostasis in the body's energy balance.

In contrast, the other choices do not accurately describe the primary functions of the pancreas regarding blood sugar levels. While adrenaline can influence metabolism, it is not the primary function of the pancreas. The pancreas does not store glycogen; instead, the liver and muscles perform that function. Additionally, the absorption of glucose occurs in the intestines, which is separate from the pancreas's regulatory roles.