Chapter 24 Flashcards
Seminal Vesicles secrete?*****
60% of seminal fluid.
What does seminal vesicles contain?*****
fructose that nourishes sperm
Prostate gland secretes?**
30% seminal fluid
What does the prostate gland contain?****
enzymes that activate the sperm
What does the bulbourethra gland secrete? *****
5% seminal fluid
What does the bulbourethra gland wash away?*****
residual urine in the urethra.
Seminal fluid + sperm =
semen
spermogensis is produced in the?
seminiferous tubules.
Where to sperm mature?
epididymis
What does the acrosome contain?
enzymes which enable sperm to penetrate egg.
The middle piece of a sperm has increased?
mitchondria
How many chromosomes must you have to be close normal?
46
Meiosis is?
nuclear division of gametes (sex cells)
46 is the
diploid number
23 is the
haploid number
the 23rd chromosome is the
sex chromosome
What is crossing over?
When an exchange of genetic material is done.
Surrounding the seminiferous tubules are?***
interstitial cells that produce testosterone.