In the diagram A, B, C, D, and E respectively are :
1. | Mammary lobe, Mammary alveolus, mammary duct, ampulla, Lactiferous |
2. | Mammary alveolus, Mammary lobe, ampulla, mammary duct, Lactiferous |
3. | Mammary duct, ampulla, Lactiferous, Mammary lobe, Mammary alveolus |
4. | Ampulla, Lactiferous, Mammary lobe, Mammary alveolus, mammary duct |
I: | The cells of alveoli secrete milk, which is stored in the cavities (lumens) of alveoli. |
II: | Milk is sucked out through the mammary ducts. |
Assertion (A): | Breast-feeding during the initial period of infant growth is recommended by doctors for bringing up a healthy baby. |
Reason (R): | The milk produced during the initial few days of lactation is called colostrum. |
1. | Both (A) and (R) are True but (R) does not correctly explain (A). |
2. | (A) is True but (R) is False. |
3. | Both (A) and (R) are True and (R) correctly explains (A). |
4. | (A) is False but (R) is True. |
1. | IgA | 2. | IgG |
3. | IgM | 4. | IgE |