Question
Differentiate: Endocrine gland and Exocrine gland.
| Endocrine gland | Exocrine gland |
| (i) These are ductless glands. | They may or may not have ducts. |
| (ii) They pour secretion directly into the blood. | The secretion is poured directly at the sight of action or reaches the target. |
| (iii) They secrete hormones. | They secrete enzymes. |
| (iv) They control long term activities of target organs, e.g., thyroid glands. | They control short term activity, e.g., gastric gland. |
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| A (Condition) | B (Cause) | ||
| a | Dwarfism and mental retardation | 1 | shortage of glucose in blood |
| b | Diabetes mellitus | 2 | Over secretion of growth hormone |
| c | Excess of glucose in blood | 3 | Insulin shock |
| d | Gigantism | 4 | Over secretion of thyroxine |
| e | Enlargement of breasts in adult males | 5 | Hypothyroidism |
| f | Exophthalmic goitre | 6 | Over secretion of cortical hormones |