Final answer:
The ripening of eggs within the ovarian follicles is influenced by hormones in the blood plasma, not urine, filtrate, or urea. LH and FSH from the pituitary gland stimulate the maturation of an oocyte, which is released during ovulation and must be fertilized in the distal uterine tube. The correct option is c) Blood plasma
Step-by-step explanation:
The ripening of eggs within the ovarian follicles in the ovary is influenced by blood plasma, which carries hormones, specifically Luteinizing Hormone (LH) and Follicle-Stimulating Hormone (FSH). These pituitary hormones stimulate the maturation of one of the growing follicles, leading to ovulation. During ovulation, an oocyte is released from a human ovary and can enter the oviduct.
Upon ovulation, the oocyte, which is a secondary oocyte, is surrounded by two protective layers: the corona radiata, an outer layer of follicular cells, and the zona pellucida, a thick glycoprotein membrane. These layers remain with the oocyte upon ovulation.
The oogonium is a diploid cell from which the secondary oocyte originates, and the secondary oocyte is formed through a process called oogenesis. This cell can be fertilized by a sperm to form a zygote, but for fertilization to occur, it must meet the sperm in the distal uterine tube as the unfertilized oocyte cannot survive the journey to the uterus.