An embryo is an animal in the early stages of growth from an egg
cell which is the result of the union of a female gamete with a male
gamete
A gamete is a mature male or female germ cell usually possessing a
haploid chromosome set
What is the name of the male gamete ?
A sperm cell is a male gamete
What is the name of the female gamete ?
The ovum is the female gamete
The fertilisation is the process of union of two gametes whereby the
somatic chromosome number is restored and the development of a
new individual is initiated
How could fertilisation be prevented ?
Birth control prevents conception or pregnancy
Which devices prevent conception ?
Condoms, diaphragms and pills can prevent conception
A condom is a sheath commonly of rubber worn over the penis
A diaphragm is a molded cap usually of thin rubber fitted over the
uterine cervix to act as a mechanical contraceptive barrier
The cervix is the narrow outer end of the uterus producing mucus
A pill is any of various preparations that usually contain a
combination of a progesterone and an estrogen which are taken
orally especially on a daily basis, and act as contraceptives typically
preventing ovulation by suppressing secretion of gonadotropins (as
luteinizing hormone) or preventing endometrium development or
cervix mucus fluidity
What is a morning after pill ?
A morning after pill is an oral drug usually containing high doses of
estrogen taken up to usually three days after unprotected sexual
intercourse that interferes with pregnancy by inhibiting ovulation or
by blocking implantation of a fertilized egg in the human uterus
IUD stands for intrauterine device which is a device inserted into
and left in the uterus to prevent effective pregnancy
Pregnancy is gestation : the carrying embryos in the uterus
How can pregnancy be detected ?
Pregnancy can be known thanks to a test based on the detection of
HCG produced by the trophoblast which is a part of the blastocyst
What does HCG stands for ?
HCG stands for human chorionic gonadotropin
How could infertile couples be helped ?