Diabetes+ZW

15.1 Endocrine Glands (p.296-297) (1) What is a hormone? A chemical produces by one set of cells that effects another set of cells (2) How are the nervous system and endocrine system similar? They both use chemical signals when they respond to changes that might threaten homeostasis, but they have different means of delivering the signals. The nervous system uses sensory receptors while the endocrine system delivers hormones that respond to situations. 15.5 Pancreas (p.308-310) (3) Describe insulin secretion from the pancreas. Where is it produced? When is it secreted? Insulin is secreted when the glucose level is high, which usually occurs after one eats. So in that case, insulin is produced when the glucose level is high. (4) What is the role of insulin? Its role is to stimulate the uptake of glucose by cells. (5) What is diabetes mellitus? A condition characterized by a high blood glucose level and the appearance of glucose in urine, due to a deficiency of insulin production and failure of cells to take up glucose. (6) How does a glucose tolerance test assist in the diagnosis of diabetes? Because the more reactant of less reactant that person is will give them a hint in diagnosing them with stage 1 or stage 2 diabetes. (7) What causes diabetes type 1? It occurs after a viral infection, can be passed down, and the cells that killed the viral infection keep killing the pancreatic cells (8) How is diabetes type 1 controlled? Insulin shots, healthy diet (9) What causes diabetes type 2? Overeating, obesity, inactivity (10) How is diabetes type 2 controlled? Metformin, healthy diet (11) What are the symptoms of diabetes? • Frequent urination especially at night • Unusual hunger or thirst • Unexplainable change of weight • Blurred vision • Sores that do not heal • Excessive fatigue