Question

Explain the role played by thyroid and parathyroid gland

Answer 1

thyroid control metabolism and helps In growth and development and parathyroid regulates the level of calcium in blood

Answer 2

Explanation:

The Thyroid Gland :

• This large gland is located in the throat,near the larynx.
• The main hormone it secretes in thyroxine, which is an iodine-containing protein.
• This hormone controls the general metabolic functioning of the body, especially the rate at which energy is produced and oxygen consumed.
• Thyroxine is also necessary for normal physical growth and development.
• An excessive secretion of the thyroxine is called hyperthyroidism.
• This raises the general metabolism of the body and as a result, stored fats are converted into energy too fast.
• A person with this condition suffers from high blood pressure and loss of weight and may become overactive.
• An insufficient secretion of thyroxine is called hypothyroidism.
• This causes sluggishness and weight gain.
• Since it slows down metabolic activity,it retards growth and mental development in children.
• Another symptom is the swelling of the thyroid gland.
• This is called goitre, which may also occur if one's diet lacks iodine.

The Parathyroid Glands :

• These are four small glands located right behind the thyroid gland.
• The hormone secreted by these, called parathormone, helps maintain the level of calcium in the blood.
• A certain level of calcium in the blood is required to facilitate musclar activity, among other things.