The wall of the uterus has three layers…
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
The wall of the uterus has three layers.
- Name them from the outside to the inside.
- Which one is made of smooth muscle?
- Which one changes with the menstrual cycle?
- Which one contracts strongly when a baby is born?
Need a reminder? The key ideaShow
An ovary is to cm long. The follicles lie in its cortex. The oviduct has the infundibulum, the ampulla and the isthmus. Fertilisation is in the ampulla. The wall of the uterus has the perimetrium, the myometrium and the endometrium. The reproductive life of a woman runs from the first menstruation to menopause, about years of age.
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) Perimetrium, myometrium and endometrium.
Step 2. (b) The myometrium.
Step 3. (c) The endometrium. It is built up and shed again in each cycle.
Step 4. (d) The myometrium.
Answer: (a) perimetrium, myometrium, endometrium; (b) myometrium; (c) endometrium; (d) myometrium.
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