A young couple has had regular,unprotected sexual intercourse for 4 years,without a pregnancy.They are seeking help at an assisted reproduction/in vitro fertilization (IVF) clinic for infertility.The husband's sperm count and sperm structure are normal.The wife undergoes a round of IVF.She must inject herself with FSH,which produces large antral follicles visible on ultrasonography.She is then given an LH injection,and her eggs are collected in a long needle by transvaginal approach 16 hours later.The FSH injections have the following effect on the ovary:
A) Increase LH receptor expression in the theca
B) Increase androstenedione production
C) Stimulate oocyte maturation
D) Increase CYP19 (aromatase) expression in the granulosa cells
E) Induce luteinization
Correct Answer:
Verified
Q1: Ejaculation is controlled by a reflex arc
Q2: The primordial follicles collectively make up:
A)The ovarian
Q4: A disorder of sexual development (e.g.,having an
Q5: The Sertoli cell expresses:
A)The FSH receptor and
Q6: Estrogen has which of the following cardiovascular
Q7: During the early follicular phase,the granulosa cells
Q8: Spermiogenesis results in the metamorphosis of which
Q9: "Lactational amenorrhea" is a physiological phenomenon that
Q10: In the male hypothalamic-pituitary-gonadal axis,negative feedback on
Q11: The zona pellucida represents a formidable barrier
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