Speed ratings on tires are expressed in letters and are generally listed along with the load index for a tire after the size, for instance 245/40R18 93H. 93 is a load index and the H is the speed rating .â¦. What Does Z Mean On The Tires | Zr Speed Rated | Zr Rating. 1  Differences in Tire Speed Ratings Explained.
Effacement: Thinning of the cervix. In the last month of pregnancy the cervix will begin to stretch and thin. This is an indication that the lower portion of the uterus is getting prepared for delivery, as a thinner cervix dilates more easily. Your health care provider can check for effacement in the final two months of pregnancy.
Your cervix may feel firm and round like the tip of your nose, or it may feel softer with less defined boundaries, like pressing into the tip of your relaxed tongue. You may also feel a small dent or hole in the middle which is the opening of your cervix and the passage into your uterus. This is called the cervical os.our cervix position changes during your menstrual cycle and can give you clues about when you are most fertile .A Ã¢ it may take some, practice but make a habit of regularly checking your cervical position andâyou ll become familiar with how your cervix feels at each stage of your fertility. cycle