Insulin Is Secreted from the Pancreatic Islets of Langerhans in Response

Multiple Choice

Insulin is secreted from the pancreatic islets of Langerhans in response to elevated levels of glucose in the blood plasma. The effect of insulin is to stimulate cells to take up glucose (out of the plasma) , resulting in decreased plasma glucose levels. This system is an example of the physiological principle of

A) homeostasis.
B) homeothermy.
C) home remedy.
D) homeopathy.
E) digestion.