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Question
Cushing's disease is caused due to hypersecretion of
Cushing's disease is caused due to hypersecretion of
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Solution
The correct option is B Adrenal cortex
The correct option is B:
Explanation of the correct option:
- Cushing's disease is a condition due to hypersecretion of mineralocorticoids and which may be due to the formation of tumors(adenoma) in the adrenal cortex.
- Cushing's disease is characterized by oversecretion of cortisol, high sodium levels in the blood, abdominal obesity, thin and weak limb muscles, and increased hair growth.
- The adrenal gland is a triangular/conical gland, made of two distinct regions an outer cortex, and an inner medulla region. The outer cortex is made up of three-layer that produce three hormones such as; Mineralocorticoids, Glucocorticoids, and Sex corticoids.
Explanation of the incorrect option:
Option A:
Hypersecretion of growth hormone (GH) from the pituitary gland leads to Acromegaly, Gigantism.
Option C:
Hypersecretion (hyperthyroidism) of the thyroid gland leads to Grave's disease (exophthalmic goitre).
Option D:
The adrenal medulla produces two hormones adrenaline (epinephrine) and nor-adrenaline (nor-epinephrine) that function in the body to prepare for an emergency.
Final answer: Cushing's disease is due to the hyper-secretion of the adrenal cortex.
Adrenal cortex
The correct option is B:
Explanation of the correct option:
- Cushing's disease is a condition due to hypersecretion of mineralocorticoids and which may be due to the formation of tumors(adenoma) in the adrenal cortex.
- Cushing's disease is characterized by oversecretion of cortisol, high sodium levels in the blood, abdominal obesity, thin and weak limb muscles, and increased hair growth.
- The adrenal gland is a triangular/conical gland, made of two distinct regions an outer cortex, and an inner medulla region. The outer cortex is made up of three-layer that produce three hormones such as; Mineralocorticoids, Glucocorticoids, and Sex corticoids.
Explanation of the incorrect option:
Option A:
Hypersecretion of growth hormone (GH) from the pituitary gland leads to Acromegaly, Gigantism.
Option C:
Hypersecretion (hyperthyroidism) of the thyroid gland leads to Grave's disease (exophthalmic goitre).
Option D:
The adrenal medulla produces two hormones adrenaline (epinephrine) and nor-adrenaline (nor-epinephrine) that function in the body to prepare for an emergency.
Final answer: Cushing's disease is due to the hyper-secretion of the adrenal cortex.
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