The Menstrual Cycle

Further additional biology

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

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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