Glucagon Versus Insulin
If there’s a high level of glucose, insulin is secreted from the pancreas in order to decrease that level. Cells in your body then take up glucose, storing the molecules as glycogen, and you become tired. The pancreas then secretes glucagons so that the glycogen turns back into the glucose, used as energy for your body.
Things to remember:
1. Both glucagons and insulin are secreted from the pancreas.
2. The liver acts on glycogen
3. Beta cells (only in the pancreas) release insulin, which decreases glucose levels.
4. Alpha cells (only in the pancreas) raises glucose levels by secreting glucagons
If there’s a high level of glucose, insulin is secreted from the pancreas in order to decrease that level. Cells in your body then take up glucose, storing the molecules as glycogen, and you become tired. The pancreas then secretes glucagons so that the glycogen turns back into the glucose, used as energy for your body.
Things to remember:
1. Both glucagons and insulin are secreted from the pancreas.
2. The liver acts on glycogen
3. Beta cells (only in the pancreas) release insulin, which decreases glucose levels.
4. Alpha cells (only in the pancreas) raises glucose levels by secreting glucagons
This picture shows the effect of insulin/glucagon in the body.
Calcitonin versus PTH
Calcium is created from osteoclasts, which make it from your bone fragments. When there is too much calcium, calcitonin is released from the thyroid gland in order to block the osteoclasts, and therefore, prevent calcium production. If the calcium levels are too low, PTH comes from the parathyroid gland, goes to the osteoclasts and tells them to start up again. This causes calcium levels to rise.
Things to remember:
1. PTH and vitamin D work together to put calcium in your bones.
2. Vitamin D is sunlight, and you need to be exposed by it in order to absorb calcium.
This picture shows the effect of calcitonin/PTH in your body.
Things to remember:
1. PTH and vitamin D work together to put calcium in your bones.
2. Vitamin D is sunlight, and you need to be exposed by it in order to absorb calcium.
This picture shows the effect of calcitonin/PTH in your body.Questions:
1. From where are glucagon and insulin secreted?
a. Glucagon is secreted from the liver; insulin is secreted from the pancreas
b. Glucagon is secreted from the liver; insulin is secreted from the liver
c. Glucagon is secreted from the pancreas; insulin is secreted from the liver
d. Glucagon is secreted from the pancreas; insulin is secreted from the pancreas
2. Where is calcium produced?
a. Parathyroid gland
b. Thyroid gland
c. Osteoclasts
d. Osteoblasts
3. What do you need in order to absorb calcium?
a. Vitamin E
b. Vitamin D
c. PTH
d. Glucagon
Answers: d, c, b
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