Entrance Exams
Govt. Exams
Testosterone is responsible for development of male secondary sexual characters like facial hair, deepening of voice, muscle development, and sperm production.
Oligospermia (low sperm count) and asthenozoospermia (poor motility) are the major causes of male infertility, often due to lifestyle factors, infections, or genetic issues.
Copper T IUD has the highest efficacy rate at 99.2%, making it one of the most reliable contraceptive methods available in India.
The LH (Luteinizing Hormone) surge triggers ovulation, the release of a mature ovum from the ovary, typically occurring around day 14 of the menstrual cycle.
GnRH (Gonadotropin-Releasing Hormone) from the hypothalamus stimulates the anterior pituitary to release FSH and LH, initiating the reproductive cycle.
Oral contraceptive pills are hormonal contraceptives, not barrier methods. Barrier methods physically prevent sperm from reaching the ovum.
The corpus luteum, formed after ovulation, secretes progesterone, which maintains the endometrium for potential implantation and pregnancy.
Levonorgestrel-releasing IUDs (like Mirena) release the hormone levonorgestrel, which thickens cervical mucus and prevents fertilization, with added uterine effects.
The average menstrual cycle is 28 days, though it can range from 21-35 days. It consists of menstruation, follicular phase, ovulation, and luteal phase.
Testosterone, produced by Leydig cells in testes, is the primary hormone regulating spermatogenesis. It acts on Sertoli cells and is essential for sperm production.