Ch. 15 Reproduction in human Flashcards
Where are egg cells made?
In the two ovaries
What are oviducts?
Tubes leading from ovaries to uterus
Do oviducts connect directly to ovaries?
No, they have a funnel shaped opening a short distance away
What is the uterus made of?
Muscles
What is the uterus?
Organ in which a fetus develops
What’s the cervix?
The neck of the uterus
Where are the male games made in?
In the two testes
What are the two testes in?
In a sack of skin called scrotum
What is the sperm carried away from each testes in?
In the sperm duct
What’s the prostate gland?
Organ which produces semen in which sperm swim in
What are egg and sperm cells?
Haploid cells
How does ovulation work?
A mature follicle burts and releases egg into oviduct
What are the stages leading to implantation?
- Ovulation: mature follicle busts
- Fertilisation: A sperm nucleus fuses with the gg nucleus
- Zygote divides
- Ball of cells is formed
- Ball keeps dividing
- Implantation
Explain the menstrual cycle hormones
Four hormones involved (FSH, LH, progesterone, oestrogen)
- FSH and LH produced in pitutary gland
- FSH, LH produced immediately
- FSH causes follicle to develope
- Follicle produces oestrogen
- Oestrogen thickens wall uterus
- Follicle bursts
- LH produced
- Ovulation happens
- Reduces oestrogen level
- Follicle produces progesterone
- Progesterone inhibits pitutary gland
