The uterus of the female reproductive system opens into the:
Correct answer: B. Birth canal
- A. Placenta
- B. Birth canal
- C. Cervix
- D. All of these options are correct
Explanation
The uterus of the female reproductive system opens into the vagina. The birth canal is the other name for the vagina. The cervix, which is the lower part of the uterus, protrudes into the upper part of the vagina. During childbirth, the cervix dilates to allow the passage of the baby from the uterus into the vagina and eventually out of the body. The vagina serves as a muscular tube that connects the uterus to the external body surface and functions in sexual intercourse, as well as the passage for menstrual flow and childbirth.
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About Reproduction
Human reproduction covers the male and female reproductive organs, gamete formation, fertilization, implantation and hormonal regulation. The menstrual cycle includes ovarian and uterine changes controlled by pituitary and ovarian hormones, while sexually transmitted diseases are studied through their causes, transmission, symptoms, prevention and effects on fertility.
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