Based on your knowledge of the reproductive system, describe some possible methods of birth control that would impair ovulation, fertilization and implantation.
What will be an ideal response?
Answer: Hormonal method - Prevent ovulation.
-Thicken mucus at the cervix so sperm can not pass through..
-Changes the environment of the uterus and fallopian tubes to prevent implantation if fertilization occurs.
Intra uterine device (IUD) :
- The progestin released by the hormonal IUD prevents fertilization by making the mucus cervix thick and sticky , so sperm cannot get through the uterus. The progestin and IUD change the uterine lining preventing implantation.
- The cooper in cooper IUD is toxic to sperms. It kills sperms.
Barrier method - block sperm from reaching the egg
-used spermicide, which kills sperm.
Permanent method - (sterilization) Menvasectomy- blocks the release of sperms.
Women Tubal ligation surgery or tubal implants block movement of an egg the fellopian tube.
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What is true about Implantation?
a. It normally occurs in the oviduct. b. It occurs about three days after fertilization. c. It occurs during the secretory, or progestational, phase. d. Both b and c e. All of the above
The element necessary in the diet for proper thyroid function is ________.
A) sodium B) potassium C) calcium D) iodine E) bromine
Livestock are too large to be weighed on a scale
Indicate whether the statement is true or false
Which of the following is aldosterone able to affect?
A) sodium retention B) osmotic flow of water in the proximal convoluted tubule C) removal of wastes through the entire renal tubule D) pH regulation E) formation of plasma proteins