On day 1 of the menstrual cycle,FSH levels will be ________.The follicle that will become dominant is in the ________ stage of maturation.Progesterone levels in blood are ________.
A)rising;primordial;low
B)rising;preantral to antral;low
C)rising;preantral to antral;high
D)falling;expanding;low
E)falling;atretic;high

Question

Quizplus · Accepted Answer

On day 1 of the menstrual cycle, FSH levels will be rising as the hypothalamus begins to secrete gonadotropin-releasing hormone (GnRH), which stimulates the pituitary gland to release FSH and LH. The follicle that will become dominant is in the preantral to antral stage of maturation, as it has not yet developed a fluid-filled cavity (antrum) but has started to enlarge. Progesterone levels in blood are low at this point in the menstrual cycle. Therefore, option B is the best choice as it accurately reflects the hormonal changes that occur on day 1 of the menstrual cycle.

On Day 1 of the Menstrual Cycle,FSH Levels Will Be