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प्रश्न
You have learnt that a characteristic feature of endocrine system is the presence of feed back loops. By this what is meant if hormone A stimulates gland ‘X’ to secrete hormone B, the production of ‘A’ could be modified when the level of B changes in our blood. An example is the relation between hormones LH and estrogen (E2). An old woman exhibits the following features. High levels of LH in blood but low levels of E2 in the blood. Another woman exhibits high level of LH in blood and also high level of E2 in the blood. Where is the defect in both these women? Provide suitable diagram to support this answer.
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उत्तर
If an old woman exhibits high levels of LH in her blood but low levels of E2 in the blood then it may be due to any abnormality in the anterior pituitary. If an old woman exhibits high levels of LH in blood and high levels of E2 in the blood then it may be due to any abnormality in the anterior pituitary or ovary.
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संबंधित प्रश्न
| Hormones | Target gland |
| Hypothalamic hormones | ______ |
The diagram give below represents an endocrine gland in the human body. Study the diagram and answer the following questions:
Identify the endocrine gland. Where is it located?
Name the following:
Posterior lobe of pituitary
Give the special function of the following:
Gonadotrophic hormone
Which one of the following statement is true/ false?
Adrenaline is secreted by pituitary.
Give the Technical Term: Name the glands which secrete the following hormone: ACTH
Short answer question
Where is the pituitary gland located? Enlist the hormones secreted by the anterior pituitary.
Write the differences between the endocrine and exocrine glands.
Which of the following disorders is related to hyperactivity of the pituitary gland?
Which of the following endocrine glands is unpaired?
Give one example of a Tropic hormone.
Name any two hormones secreted by the Pituitary gland?
Inflammatory responses can be controlled by a certain steroid. Name the steroid, its source and also its other important functions.
Match the hormones with their source :
| Column A | Column B | ||
| (1) | Glucagon | (i) | Neurohypophysis |
| (2) | Adrenaline | (ii) | Islets of Langerhans |
| (3) | Somatotropins | (iii) | Adenohypophysis |
| (4) | ADH | (iv) | Medulla |
Name the gland that causes following disorder:
Acromegaly
Write a short note on the function of the following hormone:
Androgens
Write the full form of LH.
Name the following:
The hormone whose undersecretion causes more urine formation.
Identify the gland with the help of following clue:
The gland is located in mid-brain below the hypothalamus.
