****Lucy+Diabetes+homework

(1) What is a hormone? (insert an image too) (2) How are the nervous system and endocrine system similar? different? (3) Describe insulin secretion from the pancreas. Where is it produced? When is it secreted? (4) What is the role of insulin? (5) What is diabetes mellitus? (6) How does a glucose tolerance test assist in the diagnosis of diabetes? (7) What causes diabetes type 1? (8) How is diabetes type 1 controlled? (9) What causes diabetes type 2? (10) How is diabetes type 2 controlled? (11) What are the symptoms of diabetes?
 * 15.1 Endocrine Glands (p.296-297)**
 * A hormone are glands that are carries by the bloodstream to target cells throughout the body.
 * [[image:http://professionals.epilepsy.com/img/hormone_2_s.gif width="483" height="407" caption="http://professionals.epilepsy.com/img/hormone_2_s.gif"]]
 * A nervous system is made up of neurons. In this system sensory receptors detect changes in the internal and external environment. THe nervous system is organized to respond rapidly to stimuli. The endocrine system is different. It is largely composed of glands. These glands are secrete hormones, which are carried by the bloodstream to target cells throughout the body.
 * 15.5 Pancreas (p.308-310)**
 * Insulin is secreted when the blood glucose level is high, which usually occurs just after eating.
 * Insulin stimulates the uptake of glucose by cells, especially liver cells, muscle cells, and adipose tissue cells.
 * It is a fairly common hormonal disease in which teh liver cells, and indeed most body cells are unable to take up glucose as they should.
 * When the pancreas is not producing insulin.
 * The person must inject insulin everyday. These injections control the diabetic symptoms but can still cause inconveniences because the blood sugar level may swing between hypoglycemia ad hyperglycemia.
 * After the insulin binds to a plasma membrane receptor, the number of protein carriers for glucose increasees, and more glucose that usual enters the cell. Glucose binds to teh receptors but the number of carriers does not increase. Therefore the cell is said to be insulin resistant.
 * By having a lot fat diet, low sugar diet ad exercising regularly.
 * Blindness, kidney disease, and cardiovascular disorders, including atherosclerosis, heart disease, strokes, and reduced circulation.