Unit 2 : Gamete Production + Fertilisation
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Where in the male reproductive system is the site of gamete production?
Seminiferous Tubules
Where in the male reproductive system is the site of testosterone production?
Interstitial Cells
State the three functions of testosterone
• Activates the prostate gland • Activated the seminal vesicles • Stimulates sperm production
What are the two accessory glands in a male and what is their function?
• The prostate gland • Seminal Vesicles Secrete fluid to form semen that help with the mobility of the sperm
What does the prostate gland contribute to semen ?
It secretes a lubricating fluid containing enzymes that ensure optimum viscosity for the sperm
What does the seminal vesicles contribute to sperm ?
A liquid rich in fructose that acts as an energy source and prostaglandins to stimulate the contractions of the female tract
Where is the site of gamete production in females ?
The ovary
What surrounds the immature ovum and what hormone does it secrete?
The follicle surrounds the ovum and secretes oestrogen
Where does a mature ova get released to and what is this referred to as ?
Oviduct and it is referred to as ovulation
After ovulation what does the follicle develop into and what hormone does it secrete?
The follicle develops into the corpus luteum which starts to secrete progesterone
Describe fertilisation in humans
When the nucleus of a sperm fuses with the nucleus of a ova to form a diploid zygote in the oviduct