Which one of the following is the correct match of the events occurring during the menstrual cycle?
Ovulation - LH and FSH attain peak level and sharp fall in the secretion of progesterone
Proliferative phase - Rapid regeneration of myometrium and maturation of Graafian follicle
Development of corpus luteum - Secretory phase and increased secretion of progesterone
Menstruation - Breakdown of myometrium and ovum not fertilized
According to the sources, the menstrual cycle involves specific hormonal and uterine changes across different phases. In the Luteal (Secretory) phase, the parts of the Graafian follicle remaining after ovulation transform into the corpus luteum, which then secretes large amounts of progesterone . Other options are incorrect because: (1) Menstruation and the Proliferative phase involve the breakdown and regeneration of the endometrium (the inner glandular layer), not the myometrium (the middle muscular layer) ; and (2) While LH and FSH do peak during ovulation, progesterone levels only rise significantly after the corpus luteum is formed post-ovulation .
Join thousands of students and practice with AI-generated mock tests.