The Menstrual Cycle

Further additional biology

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P W P L Y K Y B T N L P M R C I O P W P H
S W Q E F Y U H F N L M X E K N K C U Y H
R U K J O B H Q E W U O N P E S C N M R F
W S Q W Y M Y G M E I O Q W C C A V J H V
K G S S D Y O D T Q I E X I B T B B C Q E
P R S X C R Q U E T F A D R F W D O H G I
U L M H T D L C N C E H D P B O E C N P P
B X M S U S N C O S G K X I O I E R Y I L
E F E E U N M U R T V R W T L W F H R S Y
R O A P R R Q L E T S A Y U R J E J Q K Q
T W R T Q W D O T C M H T I W S V X F N C
Y O I K F F W B S V T K E T U Q I I O D T
C C M X P N G C E J M M S A Q J T G U M Y
J I O H J A M X G V D E P R O M A F R P K
O X G B A A J E O G O O R Y Y L G X T K F
R P K L K Y L V R E N W U G O N E W E A F
H F I K B P O C P E W J R L H G N B E X O
C H F S D Q R B M L S W T A N J X Q N J S
S U H B E E T R S J N I P N M G I I E T D
O N F M K T B A I E B F B D P F D V I W S
C W D D Y I O F Y K X P H P S Q H J P H P

Clues

  • A hormone-secreting structure that develops in an ovary after an ovum has been discharged but degenerates after a few days unless pregnancy has begun (6, 6)
  • During which week of the cycle does menstruation occur (3)
  • During which week of the cycle is the lining of the uterus built up (3)
  • Hormone FSH stimulates production of (9)
  • Hormone which inhibits FSH and LH (12)
  • The day on which ovulation takes place (8)
  • When a woman stops having periods (9)
  • When does the menstrual cycle start (7)
  • Where in the brain are hormones produced (9, 5)
  • Which type of mechanism is the menstrual cycle an example of? (8, 8)

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