Advertisements
Advertisements
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.
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.
APPEARS IN
संबंधित प्रश्न
Expand the following biological abbreviation:
LTH
Match the terms of column I with those of column II:
| Column I | Column II |
| (i) Adenohypophysis | (a) Thyroxine |
| (ii) Neurohypophysis | (b) STH |
| (iii) Thyroid | (c) Oxytocin |
| (iv) Adrenaline | (d) Insulin |
| (v) Islets of Langerhans | (e) Noradrenaline |
Give the Technical Term: The condition which results in the abnormally long bones, long lower jaw bone due to hyper secretion of pituitary hormone.
Which disease is caused by hyper secretion of Glucocorticoids?
The pituitary gland is divided into four lobes.
What are the hormones secreted by the posterior lobe of the pituitary gland? Mention the tissues on which they exert their effect.
Identify the CORRECT set of hormones secreted by the adenohypophysis?
Select the mis-matched pair.
What causes the following?
Acromegaly
Write the main function of the following hormone.
Vasopressin
