HB+Diabetes

=Diabetes Homework (3/12/08)=

Describe insulin secretion from the pancreas. Where is it produced? When is it secreted?

 * Insulin is secreted from the pancreas 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.

What is the role of insulin?

 * Stimulate the uptake of glucose by cells
 * Lower blood glucose level.

What is diabetes mellitus?

 * Diabetes mellitus is when the liver cells are unable to take up glucose as performed regularly. Because of this, cellular famine exists in the midst of plenty, and one becomes hungry. As the blood glucose level rises, glucose, along with water, is excreted in the urine. Urination is frequent, and the loss of water causes the diabetic to be thirsty.

How does a glucose tolerance test assist in the diagnosis of diabetes?

 * The glucose tolerance test assists in the diagnosis of diabetes because by giving a patient 100 grams of glucose you measure the blood glucose concentration. In a diabetic, the blood glucose level rises greatly and remains elevated for several hours.

What causes diabetes type 1?

 * Type 1 diabetes is caused by the pancreas not producing insulin.

How is diabetes type 1 controlled?

 * It is controlled by taking injections of insulin to maintain the body's blood glucose level.

What causes diabetes type 2?

 * Type 2 diabetes is when there is no receptor for the hormone, in this case there is no receptor for the insulin being produce.

How is diabetes type 2 controlled?

 * It is controlled by loosing weight and exercising.

What are the symptoms of diabetes?

 * frequent urination
 * extreme hunger and thirst
 * increased fatigue