âTed Cruz is a liarâ: Marco Rubio becomes Cruzâs latest target in South Carolina. The Rubio campaign is now slamming Cruz for âdishonest push-pollsâ and dirty Facebook tricks in lead up to Saturday. Sophia Tesfaye Follow Skip to Comments.
Cervical length. The length of the cervix is the distance between the internal os and the external os. First-trimester cervical length is greater than 5 cm. The cervical length decrease to less than 34 mm at 28 weeks' gestation. In patients who have had multiple gestations, the cervix is notably shortened.
The underlying cause of the condition is compression of the long tracts in the spinal cord. The normal diameter of the cervical spinal canal is between 17 mm and 18 mm. When this diameter falls below 12 mm to 14 mm for any reason this is likely to cause stenosis and myelopathic symptoms. The average diameter of the spinal cord in the cervical spine is 10 mm. Disc Herniation.