18 Questions
What is the role of the hypothalamus in the regulation of the menstrual cycle?
Releases gonadotropin-releasing hormone (GnRH)
During which process are male gametes formed?
Spermatogenesis
What is the number of oocytes present in the ovary at puberty?
~40,000
Which phase of meiosis are primary oocytes arrested in at the time of birth?
Prophase I
What triggers the rupture of the mature follicle and release of the oocyte during ovulation?
Spike in Estradiol concentration
Which hormone stimulates Leydig cells in the testis to produce testosterone?
LH
At what stage does the process of spermiogenesis occur?
During the formation of round spermatids
Where does fertilization typically occur?
In the fallopian tubes
What is the main role of fimbriae in the fallopian tube during ovulation?
Grasping the ovum and transporting it into the tube
What occurs during spermatogenesis?
Formation of sperm cells
How is the sex of a new individual determined at fertilization?
By the combination of chromosomes from both parents
What is the significance of restoration of the diploid number of chromosomes after fertilization?
Results in a new combination of chromosomes different from both parents
What stimulates and controls cyclic changes in the ovary?
Gonadotropins
During ovulation, what covers the secondary oocyte arrested in metaphase of meiosis 2?
Zona pelucida
Which hormone produced by the hypothalamus acts on cells of the anterior pituitary gland to regulate gonadotropin secretion?
Gonadotropin-releasing hormone (GnRH)
What process does the primary oocyte undergo 3 hours before ovulation?
Meiosis 1
What is released into the peritoneal cavity during ovulation?
Cumulus oophorus
Which hormone is most directly responsible for inducing the secretory changes in the endometrium to prepare for embryo implantation?
Progesterone
Learn about spermatogenesis, spermiogenesis, and fertilization process in this quiz. Explore the transformation of round spermatids into mature spermatozoa, and the journey of the ovum to the fallopian tube. Reference reading on abnormal germ cells and fertilization is also included.
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