Reproductive system Flashcards
Male gonad
Testes
Gonad
An organ that produces sex cells in animals
Where are sperm produced?
In the seminiferous tubules in the epididymis of the testes
Glands in the male reproductive system
Seminal vesicle
Prostate gland
Cowper’s gland
What is the function of seminal fluid
It nourishes the sperm and provides a medium in which to swim
Function of sperm duct / Vas deferens
Carries sperm from the epididymis to the urethra
Function of scrotum
Keeps testes outside of the body at a lower temperature (35 degrees) which ensures optimum temperature for meiosis to occur
Survival of sperm vs egg
Sperm - up to 7 days as can be nourished in the female reproductive tract
Egg - only lives for up to 2 days
Meiosis is when
The number of chromosomes is halved
Sperm and egg producing cells are __loid
Diploid - they contain 46 chromosomes
Sperm and egg producing cells divide by
Meiosis to form sperm and egg cells
Each sperm cell has a
Haploid number of chromosomes - 23 each
How does the zygote grow?
By mitosis division ensuring each new cell has a diploid number of chromosomes
What is testosterone
The male hormone responsible for the development of the primary and secondary male sexual characteristics
What are the primary sexual characteristics
The presence of the male and female reproductive parts
