Human Anatomy and Physiology : Reproductive Physiology

Study concepts, example questions & explanations for Human Anatomy and Physiology

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Example Questions

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Example Question #1 : Help With General Reproductive Physiology

Fertilization typically takes place in which location?

Possible Answers:

Uterus

Ovary

Vagina

Fallopian tube

Correct answer:

Fallopian tube

Explanation:

The most common location for the fertilization of the egg is the fallopian tube. The zygote then undergoes several divisions and some development before implanting in the endometrium of the uterus as a blastocyst. Abnormal implantation can occur while the blastocyst is still in the fallopian tube, resulting in an ectopic pregnancy. This event generally requires surgery to rectify and can be extremely dangerous to the mother and developing embryo.

Example Question #11 : Reproductive Physiology

What is the purpose of human chorionic gonadotropin (hCG) in the female body?

Possible Answers:

Causes menstruation

Stimulate the corpus albicans

Maintains the placenta

Causes ovulation

Maintains the corpus luteum

Correct answer:

Maintains the corpus luteum

Explanation:

Human chorionic gonadotropin is a peptide hormone that helps prevent the breakdown of the corpus luteum. This allows the corpus luteum to continue secreting progesterone and estrogen during implantation. As the placenta forms, it eventually takes over the job of secreting hormones for the corpus luteum. The corpus luteum is only preserved when fertilization has occurred; normally, the structure devolves into the corpus albicans. Human chorionic gonadotropin can thus be used to detect pregnancy, as it is only secreted after fertilization.

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