The climax of the cycle, ovulation, deserves a dedicated slide. The key physiological concept here is the "LH surge." The presentation must explain the mechanism of the positive feedback loop: as estrogen levels from the dominant follicle exceed a specific threshold for a sustained period, it triggers a massive release of LH from the pituitary. This surge causes the follicle to rupture and release the oocyte. Diagrams showing the enzymatic breakdown of the follicular wall can enhance understanding of this process.
Finally, the presentation must address menstruation itself (the menses). The slide should explain that the withdrawal of progesterone causes vasoconstriction of the spiral arteries, leading to ischemia and shedding of the functional layer of the endometrium. menstrual cycle physiology ppt
Imagine a line graph with Day 1 to Day 28 on X-axis. The climax of the cycle, ovulation, deserves a
The LH surge in urine is the basis for commercial ovulation predictor kits. Diagrams showing the enzymatic breakdown of the follicular