Hormones are typically broken down by enzymes in the liver or removed by the kidneys and excreted in urine. Additionally, hormones can also bind to specific receptors on target cells, initiating a response and reducing their concentration in the blood. Therefore, the persistence of hormones in the blood is limited to maintain balance and prevent overstimulation of target tissues.
It is a hormone. So mainly by blood
Aldosterone is a hormone, so it gets to the kidneys via the blood stream.
Tetany is caused by a disturbance of the blood calcium level. So you can say vitamin D (also considered a hormone) plays a role in it. Also, the parathyroid hormone level has a direct effect on calcium levels.
There is not an actual hormone which increases blood pressure. However, the hormone adrenaline is secreted by the pituitary gland and has the effect of speeding up the contraction of the heart muscle. In turn this leads to increased blood pressure due to Fick's Law. The stroke volume of the heart has increased so more blood is being forced through the network of blood vessels
When both ovaries are removed from a rat, the hormone that is decreased in the blood is estrogen. The ovaries are responsible for the production of estrogen, so their removal leads to a decrease in estrogen levels in the bloodstream.
Tetany is caused by a disturbance of the blood calcium level. So you can say vitamin D (also considered a hormone) plays a role in it. Also, the parathyroid hormone level has a direct effect on calcium levels.
because they are hormone-secreting and so they have to be in close contact with blood vessels
Parathyroid hormone (PTH) is excreted by the parathyroid glands and plays a crucial role in regulating calcium levels in the blood and tissues. It does so by increasing the release of calcium from bone, enhancing calcium absorption in the intestines, and promoting calcium reabsorption in the kidneys.
The plasma is replaces in the short term by releasing ADH (Anti-Diuretic Hormone) into the blood streem. This hormone makes the body hold onto more water so the body can put it into the plasma. The red blood cells are replaces over time by the bone marrow of the larger bones.
When calcium blood levels fall, the parathyroid gland releases parathyroid hormone (PTH). PTH helps regulate calcium levels in the blood by increasing calcium absorption in the gut, reabsorption in the kidneys, and releasing calcium from bone.
Diabetes is when your body does not produce the hormone insulin. So with someone with type 1 diabetes they have to do daily insulin injections. So the job of insulin is to level out your blood sugar level so yes the hormone insulin is used to treat diabetes.