Male reproductive system
LO: To understand the link between male
reproductive organs anatomy and their role
Success criteria:
1.
2.
3.
4.
5.
6.
7.
I differentiate sexual and asexual reproduction
I know the anatomy of male reproductive system
I distinguish male sexual characteristics
I know where in a testis the sperm cells are being produced
I know the function of gonadotropin and testosterone
I can describe and label of a male gamete (sperm)
I understand the process behind penile erection.
penile= prącie
prącie=penis
testicles= jądra= testes
testis- jądro (l. poj.)
Sexual vs asexusal reproduction
Sexual
reproduction
requires
gametes
Overall function of male reproductive system
Sexual characteristics
All body features that make male and female different
Boy or girl? How
do we recognise
baby’s sex?
There are 3 ‘levels’
of biological sexual
characteristics
Primary male sexual characteristic
Presence of testes-male organs producing gametes: sperm cells
testicles= jądra= testes
testis- jądro (l. poj.)
Secondary male sexual characteristic
-
penis (prącie)
prostate (prostata)
seminal vesicle (pęcherzyk nasienny)
vas deferens (nasieniowód)
epididymis (najądrze)
scrotum (moszna)
*bladder, urethra and colon are not a part of male reproductive
system
Tertiary male sexual characteristics
-
facial hair
‘wide’ shoulders and ‘narrow’ hips
low voice tone
body hair
pubic hair
Gained through
puberty
Quaternary male characteristics- psychological
differences
Functions of male reproductive system
1.
2.
3.
4.
Production of sperm cells→ testes
Maturation and storage of sperm cells→ epididymis
Transport of sperm cells (ejaculation) → vas deferens
Production of nourishing fluid → prostate + seminal vesicle
During ejaculation sperm cells are mixed up with nourishing fluid and then
during sexual intercourse passed to female vagina.
Fluid contains fructose, enzymes, vitamin C and is basic (pH higher than 7)
Testicle
Spermatogenesis
Anatomy of a sperm cell
Why sperm
cells need
many
mitochondria?
Testosterone
What is the role of
testosterone?
Erection