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Chemical Coordination and Integration

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Biology

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Biology

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CBSE Gujarat Board Haryana Board

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Class 10 Class 12
Discuss the abnormalities of parathyroid gland.

Abnormalities of parathyroid gland :

1. Due to hyposecretion : Secretion of the PTH in lesser amount that the normal results in :

(a) Decrease of calcium of blood which causes cramps and convulsions.

(b) It also causes parathyroid tetani which is characterised by sustained contraction of muscles of face, larynx, limbs etc.

2. Due to hypersecretion : Secretion of the hormone in excess amount results in abnormal increase in the amount of calcium in blood. The increased calcium levels may results in easy fractures of bones.

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Name the cells that the thyroid gland is composed of.

The thyroid gland is composed of the following :
i. Follicles
ii. Stromal tissue
523 Views

Name the largest endocrine gland.

Thyroid gland.
479 Views

Why is the Parathyroid hormone called hypercalcemic hormone?

PTH or parathyroid hormone is also called hypercalcemic hormone as it increase the calcium level in the blood.
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What is goitre?

Goitre is the condition in the the thyroid gland is enlarged and the neck portion becomes swollen .It is due to the deficiency of iodine in our diet which results in the less production and secretion of the thyroid hormones that is hypothyroidism.
467 Views

Name the endocrine gland which is H shaped.

Thyroid gland.
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