[单选题]
The diagram shows a frontal
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What structures are labeled by the numbers 1, 2, and 3?
A.
B.
C.
D.
参考答案:
B
本题详细解析:
The structure labeled 1 is the fallopian tube, which allows the passage of the egg to the uterus.
The structure labeled 2 is the uterus which is where the fertilized egg implants and the embryo develops.
The structure labeled 3 is the vaginal canal which receives sperm.
The cervix is between the vagina and the uterus and is not labeled in this diagram. Thus answer Choices A, C and D are incorrect.
