cbse class 10 science sample question paper 2023-24
“Both overproduction and underproduction of Growth hormone leads to disorders in the body.” Explain.
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Both overproduction and underproduction of growth hormone (GH) can lead to disorders in the body, impacting growth, development, and various physiological functions. Growth hormone is produced by the pituitary gland, a small gland located at the base of the brain. Here’s an explanation of the disorders associated with both overproduction (hypersecretion) and underproduction (hyposecretion) of growth hormone:
A) Overproduction of Growth Hormone (Hypersecretion):
Condition: The overproduction of growth hormone is often associated with a medical condition called acromegaly in adults or gigantism in children.
Causes: Hypersecretion of growth hormone is commonly caused by a noncancerous tumor (adenoma) in the pituitary gland, which leads to excessive GH production.
Effects: In children (gigantism): Excessive GH before the closure of the growth plates in bones can result in abnormal and excessive growth, leading to abnormally tall stature.
In adults (acromegaly): Excess GH after the closure of the growth plates can cause the thickening of bones and tissues, leading to enlarged hands, feet, and facial features. It can also affect internal organs and metabolism.
B) Underproduction of Growth Hormone (Hyposecretion):
Condition: The underproduction of growth hormone results in a condition known as growth hormone deficiency (GHD).
Causes: Hyposecretion can be caused by congenital factors, damage to the pituitary gland, genetic factors, or certain medical conditions.
Effects: In children: Growth hormone deficiency can lead to stunted growth and short stature if not treated. Children with GHD may have delayed physical development.
In adults: Growth hormone deficiency can result in decreased bone density, decreased muscle mass, increased body fat, and changes in overall body composition.
In both cases, the imbalances in growth hormone levels can impact not only the growth and development of bones and tissues but also various metabolic processes in the body. Treatment approaches may include hormone replacement therapy to restore normal growth hormone levels or surgical intervention to address the underlying causes, such as the removal of a pituitary tumor in cases of hypersecretion. Regular monitoring and medical management are essential to mitigate the effects of these disorders and ensure overall health and well-being.