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प्रश्न
Why do we hiccup and cough sometimes when we swallow food?
उत्तर
Normally, the entry of food into the windpipe is prevented by a flap-like structure called Epiglottis. But when we eat in a hurry, the flab gets lesser time to close the windpipe. Thus some of the food particles enter into the windpipe. It creates a hindrance in the movement of air in the windpipe and results in coughing or hiccup.
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संबंधित प्रश्न
| Hormones | Target gland |
| Thyrotrophin (TSH) | ______ |
Which parts of the alimentary canal produce hormones?
Is the following gland an exocrine or an endocrine gland?
Liver
Column ‘II’ is a list of items related to ideas in Column ‘I’. Match the term in Column ‘II’ with a suitable idea given in Column ‘I’.
| Column A | Column B |
| (i) Pituitary | (a) produces male sex characteristics |
| (ii) Ovaries | (b) decreases blood sugar level |
| (iii) Thyroid | (c) increases heart and breathing rate raises blood pressure |
| (iv) Thymus | (d) produces female sex characteristics |
| (v) Adrenals | (e) is known as emergency hormone |
| (vi) Hypothalamus | (f) regulates the level of calcium and phosphorus |
| (vii) Pancreas | (g) increases the rate of metabolism |
| (viii) Testes | (h) maintains the level of calcium |
| (ix) Parathyroid | regulates the amount of water excreted in the urine. |
| (x) Cretinism | (j) simulates skeletal growth |
| (xi) Diabetes mellitus | (k) regulates the activities of other glands |
| (xii) Insulin shock | (l) stimulates the development of male and female sex organs |
| (xiii) Gigantism | (m) Shortage of glucose in the blood. |
| (xiv) Enlargement of breasts in adult males | (n) Over-secretion of growth hormone |
| (xv) Exophthalmic goiter | (o) Excess of glucose in the blood |
| (xvi) Acromegaly | (p) Over-secretion of thyroxin |
| (xvii) Addison’s disease | (q) Dwarfism and mental retardation |
| (xviii)Cretinism | (r) Over-secretion of cortical hormones |
| (xix) Dwarfism | (s) Under-secretion of the adrenal cortex |
| (xx) Adrenalin | (t) Under-secretion of thyroxin in children |
| (xxi) Vasopressin | (u) Over-secretion of growth hormones in adults |
Write the role of oestrogen in ovulation?
Comment on Acini of thyroid gland.
Pineal gland is an endocrine gland, write its role.
Comment on the functions of adrenalin.
Select the right match of endocrine gland and their hormone among the options given below
| Column I | Column II |
| A. Pineal | i. Epinephrine |
| B. Thyroid | ii. Melatonin |
| C. Ovary | iii. Estrogen |
| D. Adrenal medulla | iv. Tetraiodothyronine |
Which of the following organs in mammals does not consist of a central meduallary’ region surrounded by a cortical region?
