QuestionSBA
QuestionChoice
This is not the correct answer. This is not the correct answer. Luteinizing hormone (LH) and follicular stimulating hormone (FSH) are secreted by the anterior pituitary gland and their secretion correlates with the menstrual cycle in females where they rise during the follicular phase, peak around ovulation, and fall after. FSH acts on Sertoli cells to promote spermatogenesis in males and follicular development (oestrogen production) in females.
10027473
c
Follicular stimulating hormone (FSH)
QuestionChoice
This is not the correct answer. After the implantation of a fertilized egg, the corpus luteum secretes progesterone in the early pregnancy until the placenta develops and takes over progesterone production for the remainder of the pregnancy. Progesterone is involved in prepping the endometrium for implantation of the fertilized egg and maintenance of the pregnancy.
10027475
e
Progesterone
QuestionChoice
This is the correct answer. If uterine implantation of the fertilized egg takes place, the syncytiotrophoblast cells of the blastocyst secrete human chorionic gonadotropin (HCG) which is responsible for the maintenance of the corpus luteum. Subsequently, the corpus luteum secretes progesterone in the early pregnancy until the placenta develops and takes over progesterone production for the remainder of the pregnancy. HCG is secreted by day nine, as such, HCG levels can be used to ascertain a pregnancy 10-11 days after conception.
10027471
a
human chorionic gonadotropin (hCG)
QuestionChoice
This is not the correct answer. Luteinizing hormone (LH) and follicular stimulating hormone (FSH) are secreted by the anterior pituitary gland and their secretion correlates with the menstrual cycle in females where they rise during the follicular phase, peak around ovulation, and fall after. LH acts on Leydig cells to promote testosterone production in males and corpus luteum development (progesterone production) in females.
10027472
b
Luteinizing hormone (LH)
QuestionChoice
This is not the correct answer. Gonadotropin-releasing hormone (GnRH) is released by the hypothalamus and stimulates the release of luteinizing hormone (LH) and follicular stimulating hormone (FSH) from the anterior pituitary gland.
10027474
d
Gonadotropin-releasing hormone (GnRH)
Concept
Chapter
2693
5983
Fertilisation
Topic
175
Reproductive Physiology
17892
The corpus luteum switches to producing progesterone after ovulation. If implantation fails to occur, it will regress.

Which hormone is responsible for the maintenance of the corpus luteum if fertilisation occurs?
a