Final answer:
The Schroeder forceps is the instrument used to grasp the cervix during a dilation and curettage procedure. The cervix aids fertilization by regulating sperm passage and dilates during childbirth to allow the fetus to pass.
Step-by-step explanation:
When performing a dilation and curettage, the instrument used to grasp the cervix is the Schroeder forceps.
When performing a dilation and curettage, the instrument used to grasp the cervix is called a Sims instrument.
The cervix has several crucial roles in both fertilization and childbirth. During fertilization, it produces mucus that can either impede or facilitate the passage of sperm into the uterus depending on the stage of the menstrual cycle. During childbirth, the cervix dilates to allow the passage of the fetus from the uterus to the birth canal.