3.what hormone stimulates the thickening of the endometrial tissue?

4.Describes what occurs to the follicle around day 13 and 14 ? what is this process called ?

3. The hormone that stimulates the thickening of the endometrial tissue is called progesterone. Progesterone is released by the ovaries after the release of an egg (ovulation) and prepares the uterus for implantation of a fertilized egg.

To find this information, you could either consult a reliable medical source such as a textbook, scientific journal, or trusted medical website. You could search for terms like "hormones involved in menstrual cycle" or "role of progesterone in endometrial thickening."

4. Around day 13 and 14 of the menstrual cycle, the mature follicle in the ovary ruptures and releases an egg, a process known as ovulation. After the egg is released, the ruptured follicle undergoes changes and is transformed into a structure called the corpus luteum.

To learn about the changes that occur to the follicle and the formation of the corpus luteum, you could refer to resources such as anatomy and physiology textbooks, reproductive biology textbooks, or reputable online sources. Search for terms like "follicle development during menstrual cycle" or "formation of corpus luteum."