Which layer of the uterus is responsible for the powerful contractions during labour?
Correct answer: B. Myometrium
- A. Endometrium
- B. Myometrium
- C. Perimetrium
- D. Parametrium
Explanation
The myometrium is the thick smooth-muscle layer of the uterus and produces contractions during labour. The endometrium lines the uterine cavity, while the perimetrium is the outer serous covering.
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About Reproductive Anatomy and Conception
Female and male reproductive organs, pelvic anatomy, gametogenesis, the menstrual cycle and the hormonal control of ovulation lead into fertilisation, implantation and early embryonic development. Questions distinguish ovulation from menstruation, fertilisation from implantation, and the normal anatomical changes that allow conception and pregnancy to occur.
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