| Column I [Phases] | Column II [Hormonal changes] |
| (1) Menstrual phase | (a) Rapid secretion of LH |
| (2) Proliferative phase | (b) Increased level of FSH and estrogen |
| (3) Ovulatory phase | (c) Increased level of progesterone |
| (4) Secretory phase | (d) Decrease in progesterone and estrogen |
| Column I [Phases] | Column II [Hormonal changes] |
| (1) Menstrual phase | (d) Decrease in progesterone and estrogen |
| (2) Proliferative phase | (b) Increased level of FSH and estrogen |
| (3) Ovulatory phase | (a) Rapid secretion of LH |
| (4) Secretory phase | (c) Increased level of progesterone |
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| Respiratory capacities | Respiratory volumes |
| (1) Residual volume (RV) | (a) 500 ml |
| (2) Vital capacity (VC) | (b) 2000 – 3000 ml |
| (3) Tidal volume (TV) | (c) 1100 – 1200 ml |
| (4) Inspiratory reserve volume (IRV) | (d) 4100 – 4600 ml |