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ProfessorThe three target organs of parathyroid hormone are bones, kidneys, and intestines. Parathyroid hormone acts on these organs to regulate calcium levels in the body by increasing calcium absorption in the intestines, promoting release of calcium from bones, and reducing calcium excretion in the kidneys.
Parathyroid harmone acts on bone,kidney and intestine. It basically causes increase in serum calcium levels and decrease serum phosphorous levels.It causes bone resorption which increases serum calcium level,it acts on kidney causing increased excretion of phosphorous there by decreasing serum phosphorous levels.Its action on intestine is indirect through vitamin-D which increases intestinal absorption of calcium.
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What role do calcium play in homeostasis?
Three hormones: parathyroid hormone, calcitonin and 1,25 dihydroxycholecalciferol (the active from of Vitamin D). These three hormones act on bone, the kidneys and the small intestine to keep calcium balance in you r body.
What hormone does the parathyroid release?
The parathyroid gland releases parathyroid hormone (PTH), which regulates calcium levels in the blood by acting on the bones, kidneys, and intestines. PTH helps to increase blood calcium levels by promoting calcium release from bones and reducing calcium excretion by the kidneys.
What are three body organs?
Three body organs are: the brain, the heart, the liver.
What are three conditions related to alterations in growth hormone?
Acromegaly: a disorder where the pituitary gland produces too much growth hormone, leading to excessive growth of tissues and organs. Dwarfism: a condition characterized by a lack of growth hormone production, resulting in short stature. Gigantism: a condition caused by an overproduction of growth hormone before puberty, leading to excessive growth and height.
What are three ways in which endocrine glands are stimulated to secrete their hormones?
· Hormonal stimuli - the most common; endocrine organs are prodded into action by other hormones. Hormone release promoted by this mechanism tends to be rhythmic, with hormone blood levels rising and falling again and again · Humoral Stimuli - changing blood levels of certain ions and nutrients stimulate hormone release. Humoral refers to humor to indicate the various body fluids (blood, bile, etc). · Neural Stimuli - In isolated cases, nerve fibers stimulate hormone release, and the target cells are said to respond to neural stimulus. The classic example is sympathetic nervous system stimulation of the adrenal medulla to release norepinephrine and epinephrine during periods of stress.
