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parathyroid harmone;secreated by parathyroid glands.these are present on thyriod gland.and these are four in number.placed 2 in one part of thyroid gland and 2 in another part of thyroid gland.

its secreations;secreats paratharmone.

antoginstic to;it is acts antagonistic to calcitonin secreated by parafollicular cells or 'c' shaped cells present in thyroid gland.

  1. its functions;its main role is to regulate calcium levels in blood.it helps in decresing calcium levels in blood.while calcitonin helps in maitained ionised calcium levels in blood.
  2. it mainly acts on bones,smallintestine and renal tubules present in kidneys.
  3. action on bones;it causes bone reabsorption or demineralisation of bone.that means it absorbs calcium from bones .it acts on bones through osteoclasts.while absorbing calcium from bones there will be loss of mucopolysaccharide from bone matrix.
  4. action on smallintestine;it stimulates absorption of calcium in smallintestine.but ca and P occurs only in presence of vit-D presence.in deficiency of this vitamin ricketsoccurs.it ledas to osteoporosis.
  5. action on renaltubules;stimulates reabsorption of Ca from glomerular filterate.
  6. excreation;this harmone also helps in excreating in Ca and P in urine.

disorders;hyposecreation;causes low Ca levels in blood as a result muscular weakness occurs ,tetany also occurs.

hypersecreation;this causes decalcification of bones,and calcium starts get depositing in form of caliculi,in kidneys,pancreas.calcification also occurs in soft tissues even in pericardium.bones becomes weak due to excess demineralisation.

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βˆ™ 9y ago
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βˆ™ 5mo ago

Parathyroid hormone helps regulate calcium levels in the blood by promoting the release of calcium from the bones, increasing calcium absorption in the intestines, and reducing calcium excretion from the kidneys.

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Related questions

What gland and hormone stimulates the deposition of calcium into the bone?

The parathyroid gland secretes parathyroid hormone (PTH), which stimulates the deposition of calcium into the bone by activating osteoblasts.


What hormone is responsible for osteoclasts?

The parathyroid hormone. Also called as parathormone. This hormone is secreted by parathyroid glands.


What has the opposite effect to calcitonin?

the parathyroid hormone parathormone


What hormone causes demineralization of bones spontaneous fractures could it be parathyroid hormone?

parathyroid hormone


Where is parathyroid hormone produced?

parathyroid gland


What do the words parathyroid hormone mean?

Parathyroid hormone is a hormone secreted by the Parathyroid glands. It increases the concentration of calcium in the blood. It effects bone, kidney and intestine tissue.


Does the thyroid produce parathyroid hormone?

No, parathyroid hormone is produced by the four parathyroid glands which are located on the posterior aspect of the thyroid gland.


The hormone that is that antagonist of calcitonin is?

The opponent or antagonist of calcitonin is the parathyroid hormone. The hormone is released from as polypeptide from the parathyroid glands.


What is the medical term meaning excessive parathyroid hormone?

Hyperparathyroidism is the condition of elevated parathyroid hormone.


Which hormone increases plasma calcium levels?

The parathyroid glands are very small in size, almost the size of a grain of rice, which are located around the surface of the thyroid gland. Most people have four parathyroid glands. The parathyroid produces a hormone called the parathyroid hormone. According to parathyroid.com, the major function of the parathyroid glands are to maintain the body's normal balance of calcium levels in the blood as well as the bones. Maintaining a normal range of parathyroid hormones also affects the nervous and muscular systems.


What gland is the source of parathyroid and calcintonin?

The parathyroid gland is the source of parathyroid hormone, while the thyroid gland is the source of calcitonin.


Where is parathyroid hormone secreted from?

Parathyroid hormone is secreted from the parathyroid glands, which are four small glands located on the back of the thyroid gland in the neck.