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SCIENCE 10
Q U A R T E R 3 : M O D U L E 2
REPRODUCTIVE
SYSTEM
BUILDING
VOCABULARY
BUILDING VOCABULARY
S E M E N
O V U L A T I O N
S E C R E T E
t h e l i q u i d c o n t a i n i n g
s p e r m t h a t i s p r o d u c e d b y
t h e s e x o r g a n s o f m e n
t h e p r o c e s s i n w h i c h a
m a t u r e e g g i s r e l e a s e d
f r o m t h e o v a r y
p r o d u c e a n d r e l e a s e ( a
s u b s t a n c e )
MALE
REPRODUCTIVE
SYSTEM
P A R T S A N D F U N C T I O N S O F
M A L E R E P R O D U C T I V E S Y S T E M
FEMALE
REPRODUCTIVE
SYSTEM
P A R T S A N D F U N C T I O N S O F
F E M A L E R E P R O D U C T I V E S Y S T E M
TAKE NOTE!
P u b e r t y i n v o l v e s t h e o n s e t o f s e x u a l m a t u r i t y
a n d t h e a b i l i t y t o r e p r o d u c e . W h e n a f e m a l e
r e a c h e s p u b e r t y , e g g c e l l s s t a r t t o d e v e l o p
i n h e r o v a r i e s t h a t p r o d u c e t h e s e x c e l l s . I t
i s a l s o t h e t i m e w h e n t h e b o d y d e v e l o p s t h e
c a p a c i t y t o c o n c e i v e .
The Role of Hormones in
Female and Male
Reproductive Systems
T h e p r o d u c t i o n o f s p e r m c e l l s a n d t h e
r e l e a s e o f s e m e n c a n b e r e g u l a t e d b y
h o r m o n e s o r s p e c i a l c h e m i c a l s t h a t c o m e
f r o m t h e t e s t i s , t h e b r a i n a n d t h e p i t u i t a r y
g l a n d . T h e s e h o r m o n e s k e e p t h e
r e p r o d u c t i v e s y s t e m p r o p e r l y f u n c t i o n i n g .
ROLE OF HORMONES IN MALE
REPRODUCTIVE SYSTEM
* F o l l i c l e - s t i m u l a t i n g h o r m o n e i s n e c e s s a r y f o r s p e r m p r o d u c t i o n
( s p e r m a t o g e n e s i s ) , a n d l u t e i n i z i n g h o r m o n e s t i m u l a t e s t h e
p r o d u c t i o n o f t e s t o s t e r o n e , w h i c h i s a l s o n e e d e d t o m a k e s p e r m .
ROLE OF HORMONES IN FEMALE
REPRODUCTIVE SYSTEM
T h e f o l l i c l e s p r o d u c e h o r m o n e s t h a t
c o n t r o l t h e g r o w t h a n d r e l e a s e o f e g g s
f r o m t h e o v a r i e s . W h i l e o t h e r h o r m o n e s
p r e p a r e t h e u t e r u s s o a b a b y c a n g r o w i n
i t , o t h e r h o r m o n e s s t i l l c o n t r o l t h e
s t r e t c h i n g o f t h e u t e r u s d u r i n g p r e g n a n c y .
* T h e y a r e r e s p o n s i b l e f o r p r e g n a n c y , p u b e r t y , m e n s t r u a t i o n ,
m e n o p a u s e , s e x d r i v e
Feedback Mechanisms
Involved in Regulating
Processes in the Female
Reproductive System
THE MENSTRUAL
CYCLE
* A n o v a r y r e l e a s e s o n l y o n e
e g g e v e r y 2 8 d a y s .
W h a t c o n t r o l s t h i s t i m i n g ?
H o r m o n e s c o n t r o l m a n y o f t h e
c h a n g e s i n t h e r e p r o d u c t i v e s y s t e m .
H o r m o n e s a r e c h e m i c a l s t h a t a f f e c t
c e r t a i n b o d y o r g a n s . T h e m o n t h l y
c h a n g e s t h a t t a k e p l a c e i n t h e f e m a l e
r e p r o d u c t i v e s y s t e m a r e c a l l e d
m e n s t r u a t i o n .
- i s a t e r m t o d e s c r i b e t h e
s e q u e n c e o f e v e n t s t h a t o c c u r
i n y o u r b o d y a s i t p r e p a r e s f o r
t h e p o s s i b i l i t y o f p r e g n a n c y
e a c h m o n t h
Menstrual Cycle
MENSTRUATION
- t h e t i m e w h e n
t h e l i n i n g o f y o u r
u t e r u s s h e d s
t h r o u g h y o u r
v a g i n a i f
p r e g n a n c y h a s n ’ t
o c c u r r e d .
FOLLICULAR PHASE
D u r i n g t h i s t i m e , t h e l e v e l
o f t h e h o r m o n e e s t r o g e n
r i s e s , w h i c h c a u s e s t h e
l i n i n g o f y o u r u t e r u s ( t h e
e n d o m e t r i u m ) t o g r o w a n d
t h i c k e n . I n a d d i t i o n ,
a n o t h e r h o r m o n e —
f o l l i c l e - s t i m u l a t i n g
h o r m o n e ( F S H ) — c a u s e s
f o l l i c l e s i n y o u r o v a r i e s t o
g r o w .
OVULATION
- i s w h e n y o u r o v a r y
r e l e a s e s a m a t u r e e g g d u e
t o t h e s u d d e n i n c r e a s e o f
L u t e i n i z i n g h o r m o n e . T h e
e g g t r a v e l s d o w n t h e
f a l l o p i a n t u b e t o w a r d t h e
u t e r u s t o b e f e r t i l i z e d b y
s p e r m
LUTEAL PHASE
A f t e r t h e f o l l i c l e r e l e a s e s
i t s e g g , i t c h a n g e s i n t o
t h e c o r p u s l u t e u m . T h i s
s t r u c t u r e r e l e a s e s
h o r m o n e s , m a i n l y
p r o g e s t e r o n e a n d s o m e
e s t r o g e n . T h e r i s e i n
h o r m o n e s k e e p s y o u r
u t e r i n e l i n i n g t h i c k a n d
r e a d y f o r a f e r t i l i z e d e g g
t o i m p l a n t .

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SCIENCE-10-MODULE-2-1.pdf

  • 1. SCIENCE 10 Q U A R T E R 3 : M O D U L E 2
  • 4. BUILDING VOCABULARY S E M E N O V U L A T I O N S E C R E T E t h e l i q u i d c o n t a i n i n g s p e r m t h a t i s p r o d u c e d b y t h e s e x o r g a n s o f m e n t h e p r o c e s s i n w h i c h a m a t u r e e g g i s r e l e a s e d f r o m t h e o v a r y p r o d u c e a n d r e l e a s e ( a s u b s t a n c e )
  • 6. P A R T S A N D F U N C T I O N S O F M A L E R E P R O D U C T I V E S Y S T E M
  • 8. P A R T S A N D F U N C T I O N S O F F E M A L E R E P R O D U C T I V E S Y S T E M
  • 9. TAKE NOTE! P u b e r t y i n v o l v e s t h e o n s e t o f s e x u a l m a t u r i t y a n d t h e a b i l i t y t o r e p r o d u c e . W h e n a f e m a l e r e a c h e s p u b e r t y , e g g c e l l s s t a r t t o d e v e l o p i n h e r o v a r i e s t h a t p r o d u c e t h e s e x c e l l s . I t i s a l s o t h e t i m e w h e n t h e b o d y d e v e l o p s t h e c a p a c i t y t o c o n c e i v e .
  • 10. The Role of Hormones in Female and Male Reproductive Systems
  • 11. T h e p r o d u c t i o n o f s p e r m c e l l s a n d t h e r e l e a s e o f s e m e n c a n b e r e g u l a t e d b y h o r m o n e s o r s p e c i a l c h e m i c a l s t h a t c o m e f r o m t h e t e s t i s , t h e b r a i n a n d t h e p i t u i t a r y g l a n d . T h e s e h o r m o n e s k e e p t h e r e p r o d u c t i v e s y s t e m p r o p e r l y f u n c t i o n i n g . ROLE OF HORMONES IN MALE REPRODUCTIVE SYSTEM * F o l l i c l e - s t i m u l a t i n g h o r m o n e i s n e c e s s a r y f o r s p e r m p r o d u c t i o n ( s p e r m a t o g e n e s i s ) , a n d l u t e i n i z i n g h o r m o n e s t i m u l a t e s t h e p r o d u c t i o n o f t e s t o s t e r o n e , w h i c h i s a l s o n e e d e d t o m a k e s p e r m .
  • 12. ROLE OF HORMONES IN FEMALE REPRODUCTIVE SYSTEM T h e f o l l i c l e s p r o d u c e h o r m o n e s t h a t c o n t r o l t h e g r o w t h a n d r e l e a s e o f e g g s f r o m t h e o v a r i e s . W h i l e o t h e r h o r m o n e s p r e p a r e t h e u t e r u s s o a b a b y c a n g r o w i n i t , o t h e r h o r m o n e s s t i l l c o n t r o l t h e s t r e t c h i n g o f t h e u t e r u s d u r i n g p r e g n a n c y . * T h e y a r e r e s p o n s i b l e f o r p r e g n a n c y , p u b e r t y , m e n s t r u a t i o n , m e n o p a u s e , s e x d r i v e
  • 13. Feedback Mechanisms Involved in Regulating Processes in the Female Reproductive System
  • 15. * A n o v a r y r e l e a s e s o n l y o n e e g g e v e r y 2 8 d a y s . W h a t c o n t r o l s t h i s t i m i n g ?
  • 16. H o r m o n e s c o n t r o l m a n y o f t h e c h a n g e s i n t h e r e p r o d u c t i v e s y s t e m . H o r m o n e s a r e c h e m i c a l s t h a t a f f e c t c e r t a i n b o d y o r g a n s . T h e m o n t h l y c h a n g e s t h a t t a k e p l a c e i n t h e f e m a l e r e p r o d u c t i v e s y s t e m a r e c a l l e d m e n s t r u a t i o n .
  • 17. - i s a t e r m t o d e s c r i b e t h e s e q u e n c e o f e v e n t s t h a t o c c u r i n y o u r b o d y a s i t p r e p a r e s f o r t h e p o s s i b i l i t y o f p r e g n a n c y e a c h m o n t h Menstrual Cycle
  • 18.
  • 19. MENSTRUATION - t h e t i m e w h e n t h e l i n i n g o f y o u r u t e r u s s h e d s t h r o u g h y o u r v a g i n a i f p r e g n a n c y h a s n ’ t o c c u r r e d .
  • 20. FOLLICULAR PHASE D u r i n g t h i s t i m e , t h e l e v e l o f t h e h o r m o n e e s t r o g e n r i s e s , w h i c h c a u s e s t h e l i n i n g o f y o u r u t e r u s ( t h e e n d o m e t r i u m ) t o g r o w a n d t h i c k e n . I n a d d i t i o n , a n o t h e r h o r m o n e — f o l l i c l e - s t i m u l a t i n g h o r m o n e ( F S H ) — c a u s e s f o l l i c l e s i n y o u r o v a r i e s t o g r o w .
  • 21. OVULATION - i s w h e n y o u r o v a r y r e l e a s e s a m a t u r e e g g d u e t o t h e s u d d e n i n c r e a s e o f L u t e i n i z i n g h o r m o n e . T h e e g g t r a v e l s d o w n t h e f a l l o p i a n t u b e t o w a r d t h e u t e r u s t o b e f e r t i l i z e d b y s p e r m
  • 22. LUTEAL PHASE A f t e r t h e f o l l i c l e r e l e a s e s i t s e g g , i t c h a n g e s i n t o t h e c o r p u s l u t e u m . T h i s s t r u c t u r e r e l e a s e s h o r m o n e s , m a i n l y p r o g e s t e r o n e a n d s o m e e s t r o g e n . T h e r i s e i n h o r m o n e s k e e p s y o u r u t e r i n e l i n i n g t h i c k a n d r e a d y f o r a f e r t i l i z e d e g g t o i m p l a n t .