Name the hormone that fits each clue. A hormone made by the placenta that is made in a woman only…
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
Name the hormone that fits each clue.
- A hormone made by the placenta that is made in a woman only during pregnancy, and whose name has the word "chorionic".
- A hormone made by the placenta that has the word "lactogen" in its name.
- A hormone that the ovary secretes in the later phase of pregnancy.
- A hormone of the pituitary that makes the contractions of the uterus stronger at birth.
- A hormone of the corpus luteum that keeps the endometrium ready.
Need a reminder? The key ideaShow
The placenta forms from the chorionic villi of the trophoblast and the tissue of the uterus. It passes oxygen and nutrients to the embryo and takes carbon dioxide and waste away. The placenta makes hCG, hPL, oestrogens and progestogens. The ovary secretes relaxin in the later phase of pregnancy. hCG, hPL and relaxin are made only in pregnancy. The blood of the mother and the blood of the embryo do not mix.
The worked solution
Have you tried it?
Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.
Step 1. (a) hCG, human chorionic gonadotropin.
Step 2. (b) hPL, human placental lactogen.
Step 3. (c) Relaxin.
Step 4. (d) Oxytocin.
Step 5. (e) Progesterone.
Answer: (a) hCG; (b) hPL; (c) relaxin; (d) oxytocin; (e) progesterone.
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