What is ovulation?
The release of a mature oocyte from a mature follicle
What are sertoli cells?
nursemaid cells. they are found in the seminiferous tubules and support and nourish the cells performing spermatogenesis
What is lactation?
The process by which a female mammal produces and secretes milk to feed her young
What hormones govern the menstrual cycle and what do they do?
1.FSH-stimulates the growth of a follicle containing the egg, 3. Estrogen (Oestradiol) 4, progesterone
Of the forms of birth control, (chemical, barrier, spermicides, IUD) what is the significant issue with and IUD?
fertilization occurs, but implantation is prevented. (this is also a problem with some forms of chemical birth control)
What is the order of of the stages of development? (cleavage, zygote, gastrula, neurula, blastula, morula)
zygote, cleavage, morula, blastula, gastrula, neurula
Which stages of development are completed before the embryo enters the uterus?
zygote, cleavage and morula
In oogenesis, how many eggs are formed from one oogonium?
Only 1, and 3 polar bodies which die away.
Do the sperm and the egg contribute equal amounts of genetic material.
yes, but only the ovum contributes mitochondrial DNA