Estimate the length of the woman’s menstrual cycle. Explain how you obtained your answer.
The luteal phase is the part of the cycle in which a corpus luteum is present in the ovaries. It starts immediately after ovulation and ends when menstruation begins. Use Fig. 4.1 to suggest when the luteal phase began and ended.
Name the organ from which LH is secreted.
Describe the functions of LH in the menstrual cycle.
Suggest why the researchers used two methods to work out the phase of the menstrual cycle.
The average score for women who took the tests on day $2$ of their cycle was $10$ out of $24$. The average score for women who took the tests on day $22$ of their cycle was $14$ out of $24$. Discuss whether these results provide support for the hypothesis that the concentration of oestrogen in the blood affects the ability to perform spatial tasks.