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प्रश्न
Mention three important differences between the action of hormones and that of nerves in the regulatory mechanism of our body.
उत्तर
| Action of Hormones | Action of Nerves |
| Hormones transfer information slowly. | Information is transmitted quickly. |
| The effect of hormones can be short-lived or long-lasting | The effect of nervous response is always short-lived. |
| Chemical messengers transport information throughout the body. | The information is transmitted to specialised receptors, such as muscles and glands, via electric signals. |
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संबंधित प्रश्न
Fill in the blank:
Hormones are produced by ____________.
Match the items of column I with those of column II
| Column I | Column II | ||
| 1 | β (beta) cells of islets of Langerhans |
a | condition due to undersecretion of thyroxine in adults |
| 2 | Thyroid | b | Glucocorticoids |
| 3 | Cretinism | c | Exophthalmic goitre |
| 4 | Addison's disease | d | Increases heart beat |
| 5 | Hypothyroidism | e | Thyroxine |
| 6 | Myxoedema | f | Adrenal cortex |
| 7 | Adrenaline Under secretion of thyroxine in a child |
h | Under secretion of thyroxine in a child |
Hormones are called ‘chemical messengers’.
Organs like the stomach and intestine are also endocrine glands. Why?
Differentiate: Gigantism and Acromegaly.
Give the Technical Term: Name two hormones secreted by the alimentary canal.
Give the Technical Term: Name the structure which produces testosterone.
Some of the endocrine glands are shown by the guidelines.
(i) Name the glands 1 to 5.
(ii) Name any two endocrine glands which are not shown in the diagram.
(iii) Name one gland which is both exocrine and endocrine.
Choose the Odd One Out
Write a detailed account of gastro intestinal tract hormones.
