Question

______ together with the cervix forms the birth canal.

• A. Vagina
• B. Uterus
• C. Fallopian Tube
• D. Urethra

Hint:

The birth canal comprises the cervix and the vagina, through which a baby passes during vaginal delivery.

Answer 1

The Correct Option is A

Step 1: Understand the term "birth canal".
The birth canal, also known as the vaginal canal, is the passageway through which a baby travels from the uterus to the outside world during a vaginal birth. It consists of several anatomical structures of the female reproductive system. Step 2: Analyze the role of each option in relation to the birth canal.
(A) Vagina: The vagina is a muscular, elastic tube that connects the uterus to the exterior of the body. It forms a significant part of the birth canal, serving as the passage for the baby during delivery.
(B) Uterus: The uterus is where the fetus develops. While the lower segment of the uterus contributes to the birth canal (especially during labor as it forms part of the passageway), the question specifically asks what forms the birth canal \textit{together with the cervix}. The cervix is already part of the uterus, acting as its opening into the vagina. The primary part of the birth canal extending from the cervix is the vagina.
(C) Fallopian Tube: Fallopian tubes are ducts that connect the ovaries to the uterus. They are the site of fertilization and transport eggs to the uterus. They are not part of the birth canal.
(D) Urethra: The urethra is a tube that carries urine from the bladder out of the body. It is part of the urinary system, not the female reproductive tract involved in childbirth. Step 3: Conclude the correct anatomical structure.
The vagina is the structure that, along with the cervix, forms the primary passage for the baby during birth, collectively known as the birth canal.