Table of Contents
- 1 What organs are affected by calcitonin?
- 2 What are the effects of calcitonin?
- 3 Which gland or organ has cells that release glucagon?
- 4 Which gland or organ secretes epinephrine and aldosterone quizlet?
- 5 Which gland or organ secretes epinephrine?
- 6 What does calcitonin actually do?
- 7 What is the calcitonin target organ?
What organs are affected by calcitonin?
What is calcitonin?
- It inhibits the activity of osteoclasts, which are the cells responsible for breaking down bone. When bone is broken down, the calcium contained in the bone is released into the bloodstream.
- It can also decrease the resorption of calcium in the kidneys, again leading to lower blood calcium levels.
What is the target organ for calcitonin?
Bone
| Endocrine gland/ source of hormone | Hormone | Target organ or tissue |
|---|---|---|
| Thyroid | Calcitonin | Bone |
| Parathyroids | PTH (parathyroid hormone) | Bone, kidneys, intestine |
| Thymus (regresses in adulthood) | Thymopoetin | T-lymphocyte cells in blood |
| Pancreas (islet cells) | Insulin (from beta cells) | Most tissues, notably muscle and liver |
What are the effects of calcitonin?
Calcitonin lowers blood calcium levels by suppressing osteoclast activity in the bones and increasing the amount of calcium excreted in the urine. The hormone also prevents the absorption of calcium from the intestine, as well as increasing the calcium absorbed by the kidney.
What effect does calcitonin have on the organ affected by the disease?
In particular, calcitonin has the ability to decrease blood calcium levels at least in part by effects on two well-studied target organs: Bone: Calcitonin suppresses resorption of bone by inhibiting the activity of osteoclasts, a cell type that “digests” bone matrix, releasing calcium and phosphorus into blood.
Which gland or organ has cells that release glucagon?
Glucagon is a hormone that is involved in controlling blood sugar (glucose) levels. It is produced by the alpha cells, found in the islets of Langerhans, in the pancreas, from where it is released into the bloodstream.
Which endocrine glands secretes calcitonin?
Calcitonin is a 32 amino acid hormone secreted by the C-cells of the thyroid gland.
Which gland or organ secretes epinephrine and aldosterone quizlet?
Outer section of each adrenal gland; secretes cortisol, aldosterone, and sex hormones. Inner section of each adrenal gland; secretes epinephrine and norepinephrine. You just studied 117 terms!
Which gland or organ secretes epinephrine and aldosterone?
Endocrine Glands
| Endocrine Gland | Associated Hormones | Effect |
|---|---|---|
| Adrenal (cortex) | aldosterone | increases blood Na+ levels |
| cortisol, corticosterone, cortisone | increase blood-glucose levels | |
| Adrenal (medulla) | epinephrine, norepinephrine | stimulate fight-or-flight response |
| Pancreas | insulin | reduces blood-glucose levels |
Which gland or organ secretes epinephrine?
The adrenal glands sit atop our kidneys and secrete hormones involved in the stress response, such as epinephrine (adrenaline) and norepinephrine (noradrenaline). The pancreas is an internal organ that secretes hormones that regulate blood sugar levels: insulin and glucagon.
What factors affect calcitonin levels?
Factors which can influence calcitonin levels include nutrition, age, gender and the presence of certain diseases. High calcitonin levels may indicate an issue with the thyroid gland.
What does calcitonin actually do?
The medicine Calcitonin is used to treat Paget’s Disease of Bone
What is the function of calcitonin?
The main functions of calcitonin, which is a naturally occurring hormone, are to help to regulate levels of calcium and phosphorus in the bodies of a variety of different animals. In its natural form, this hormone can help prevent the body from taking up calcium from the bones and from reabsorbing the mineral through the urinary tract.
What is the calcitonin target organ?
In particular, calcitonin has the ability to decrease blood calcium levels at least in part by effects on two well-studied target organs: Bone: Calcitonin suppresses resorption of bone by inhibiting the activity of osteoclasts, a cell type that “digests” bone matrix, releasing calcium and phosphorus into blood.