Talk:Foundations Practical - Week 1 and 2: Difference between revisions
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{Which of the following statements is most correct about the human menstrual cycle. | {Which of the following statements is most correct about the human menstrual cycle. | ||
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||The menstrual cycle is variable amongst women and also within an individual, the "28 days" is an average time course. Like the cycle itself, the time of ovulation can vary anywhere between day 10 - day 19. The uterine lining (functional layer) is replaced ever cycle, though this would not be considered the main function of the cycle. The body temperature does increase at ovulation, but it remains high even after this point, it is the time of change that indicates ovulation. | ||The menstrual cycle is variable amongst women and also within an individual, the "28 days" is an average time course. Like the cycle itself, the time of ovulation can vary anywhere between day 10 - day 19. The uterine lining (functional layer) is replaced ever cycle, though this would not be considered the main function of the cycle. The body temperature does increase at ovulation, but it remains high even after this point, it is the time of change that indicates ovulation. | ||
{ | {Pregnancies can be detected by a pregnancy test 1 to 2 days after fertilization. | ||
|type="()"} | |type="()"} | ||
- true | - true | ||
+ false | + false | ||
|| | || After fertilization, at least 1 to 2 weeks of development must occur before {{implantation}} commences. It is only after implantation that pregnancy tests work by detecting the hormone secreted by the conceptus. | ||
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- is important for fertilization | - is important for fertilization | ||
+ all of the above | + all of the above | ||
||Yes, the | ||Yes, the {{zona pellucida}} has many different functions at different times of oocyte development, fertilization and in the first week of development. | ||
{Pregnancy tests | {Pregnancy urine tests can be based upon the detection in maternal urine of: | ||
|type="()"} | |type="()"} | ||
- Estrogen | - Estrogen | ||
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+ human Chorionic Gonadotrophin | + human Chorionic Gonadotrophin | ||
- human Chorionic Corticotropin | - human Chorionic Corticotropin | ||
|| | ||human Chorionic Corticotropin ({{hCG}}) is produced by the implanted conceptus trophoblast cells. {{estrogen}} and {{progesterone}} are made in the {{ovary}} and support the endometrium. human Chorionic Somatommotropin (or placental lactogen, stimulate maternal mammary development) and human Chorionic Corticotropin are both made by the {{placenta}} later in development. | ||
</quiz> | </quiz> | ||
