Which layer of uterus nourishes the embryo after implantation?
Correct answer: C. Endometrium
- A. Cervical epithelium
- B. Myometrium
- C. Endometrium
- D. Perimetrium
Explanation
The endometrium is the inner glandular lining, thickened and richly supplied with blood by progesterone, and it is where the blastocyst implants and from which the maternal part of the placenta develops. The myometrium is the thick smooth muscle whose contractions expel the baby at birth, and the perimetrium is the outer covering. Shedding of the endometrium is what menstruation consists of.
This question appeared on the UHS MDCAT 2025 paper, which you can sit online with every answer explained.
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The human reproductive system includes the male and female organs that produce gametes, secrete sex hormones and support fertilization and development. Questions cover the testes, ovaries, reproductive ducts, menstrual and ovarian cycles, ovulation, fertilization, implantation, placenta formation and the roles of FSH, LH, oestrogen, progesterone and testosterone.
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