SCIENCE (Reproductive Cycles)

• The phases of the ovarian cycle are differentiated according to the type and amount of hormones present.
• The ovarian cycle is related to the parts and functions of the reproductive and endocrine systems.
• Before and after fertilization, the female body undergoes different biological processes.
• Children can also be infected with sexually transmitted infections (STIs).
• AIDS is transmitted through sexual contact.
• The site of fertilization is the fallopian tubes.
• The site of implantation is the uterus.
• Symptoms of Syphilis include chancre, fever, and skin rash.
• The urethra carries about 200 million other sperm cells out of the penis in a process called ejaculation.
• Neisseria gonorrhoeae is the cause of Gonorrhea.
• Symptoms of AIDS include weight loss, swollen lymph glands, and fatigue.
• Herpes simplex virus-2 (HSV-2) is the cause of Herpes.
• Human immunodeficiency virus (HIV) is the cause of AIDS.
• Syphilis is transmitted through sexual contact.
• Gonorrhea is transmitted through sexual contact.
• STDs are not transmitted by sharing utensils.
• Treponema pallidum is the cause of Syphilis.
• Symptoms of Herpes include painful, itching lesions.
• Children can be infected with Gonorrhea, Syphilis, Herpes, and AIDS.
• Herpes is transmitted through sexual contact.
• Symptoms of Gonorrhea include a discharge called pus.
• If fertilization does not occur, the production of progesterone will slow down and stop the ovarian cycle.
• In the follicular phase, the oocyte is nurtured until maturation.
• Shedding of the uterine lining marks the end of the menstrual cycle and results in blood vessels breaking and bleeding.
• Ovulation is the process where an ovum is released from the ovaries.
• Menstruation occurs 14 days after ovulation.
• The luteal phase of the ovarian cycle is when progesterone is produced.
• If pregnancy does not occur, estrogen and progesterone levels decrease causing the uterine lining to shed.
• At the end of the ovarian and menstrual cycles, estrogen and progesterone levels will decrease, signaling the pituitary gland to produce FSH and LH, starting the cycles again.
• Before and after ovulation, increased levels of estrogen and progesterone cause the uterine lining to thicken to become conducive for a fertilized ovum.
• The menstrual cycle is controlled by changing levels of estrogen and progesterone during the ovarian cycle.
• If pregnancy does not occur, low levels of progesterone and estrogen will trigger the uterine lining to shed.
• Sperm cells are produced in the testis and develop for 2-3 months in the epididymis.
• Sperm cells leave the epididymis and travel up into the body through the vas deferens.
• Fertilization is the union of the egg and sperm cell that gives rise to a unique offspring.
• Menstruation is the process where the mixture of blood and discarded tissues leave the body through the vagina.
• The menstrual cycle happens in the uterus and grooms the uterus for possible implantation and pregnancy.
• The FSH and LH are at their peak during the follicular phase of the ovarian cycle.
• The mixture of the sperm cells and fluids is transferred to the urethra.