Term
After ovulation, approximately halfway through the female menstrual cycle, levels of progesterone rise sharply. What is the primary function of progesterone at this point in the menstrual cycle? |
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Definition
to maintain the endometrial lining of the uterus, where a fertilized egg can implant |
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Term
A follicle cell that remains behind after ovulation: |
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Definition
develops into the corpus luteum. |
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Term
Which of the following is INCORRECT regarding meiosis in women? |
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Definition
Every oogonium produces four mature ova. |
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Term
The hormones present in birth control pills typically prevent pregnancy by: |
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Definition
preventing ovarian follicles from maturing. |
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Term
What process allows sperm to penetrate the zona pellucida surrounding the mature egg just before fertilization? |
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Definition
sperm bind to the zona pellucida, triggering the egg response to open its membrane like a gate |
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Term
Which of the following describes the three events in sperm production, from just after meiosis to deposition in the female reproductive tract? |
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Definition
maturation, storage and transfer, delivery |
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Term
The completion of meiosis II in the oocyte of human females occurs: |
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Definition
after the oocyte is fertilized by a spermatazoan |
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Term
In which stage in embryonic development are the germ layers created? |
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Definition
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Term
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Definition
the substance that is released when a woman first begins to lactate |
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Term
In which part of a sperm cell can mitochondria be found? |
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Definition
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Term
In animals, the endoderm, mesoderm, and ectoderm are the types of: |
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Definition
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Term
What is the most reliable signal that a woman is about to give birth? |
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Definition
dilation of the cervix up to about 10 cm |
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Term
Sperm are produced in the _______ and stored in the ________. They then travel into the penis through the ________ and are ejaculated through the ________. |
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Definition
seminiferous tubules; epididymis; vas deferens; urethra |
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Term
Your lungs are derived from which of the following embryonic germ layers? |
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Definition
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Term
Tying off the vas deferens will: |
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Definition
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Term
In what way does egg production differ from sperm production in humans? |
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Definition
Each egg is considerably larger than a sperm |
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Term
Which STDs can be treated with antifungal suppositories or creams? |
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Definition
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Term
What is the main reason why ethical issues have arisen around human reproduction in the last decade? |
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Definition
Technology is making conception and pregnancy possible in many situations where they previously were not possible |
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Term
In the menstrual cycle of the human female, the direct response to the increase in the luteinizing hormone is: |
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Definition
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Term
What structure in a sperm cell contains what might be called "a cap or bag containing digestive enzymes"? |
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Definition
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