Life Science Flashcards
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Seminal vesicle: A gland
that produces a nutrient-
rich fluid that that provides
energy for the spem cells
4.1 Male reproductive system
Cowper’s gland: Produces
mucus that helps with the
movement of sperm oells
Figure 4.1 below shows the different parts of the male reproductive system
and their functions.
Scrotum: Skin sac that
protects the testes
and holds the testes
‘outside’ the body
at a
temperature that is 2”C
below 37 C. This is the
best temperature for the
production of sperm
Functions of testosterone
Figure 4.1 Structure of the male reproductive system
Structure of a sperm cell
- Development of male secondary sexual characteristics
such as
beard
pubic hair
Stimulates the maturation of sperm cels.
2
Figure 4.2 below shows the different parts of
functions.
Head
Middle section or
4
The testes produce the hormone testosterone
which has the following
functions:
body
Figure 4.2 Structure of a sperm cel
Questions
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Activity 1
give ONE function of each.
X
3 Give TW0 functions of testosterone.
testes: Produces sperm cells arnd
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the hormone testosterone
TEMU
1 Name the accessory glands of the male reproductive system and
Temu
Name the organ where testosterone is produced.
Mitochondria: Provide
4.6 * FREE
energy for swimming
Name all the parts of the sperm cell that are responsible for
movement. State what the function of each part is.
sperm cell and their
5 Explain the role of the nucleus of the sperm cell in fertilisation.
Acrosome: Contains
enzymes to digest wall of
egg oell for fertilisation
Nucleus: Contains
23 chromosomes
Prostate gland: Produces an
alkaline fluid that neutralises the
acids produced in the vagina
which wOuld kill sperm cells
Sperm duct: Transports sperm
from the epididymis to the urethra
J tail: Used for swimming
4G
urethra: Transports semen and
urine out of the body
epididymis: Sperm cells mature
and are stored here
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