Calcification of the intracranial arteries associated with primary atherosclerosis is more frequent in elderly people. The prevalence of intracranial artery calcification are: internal carotid artery: ~60%. vertebral artery ~20%.
It may feel as big as a whale as you begin your third trimester of pregnancy (which will last from week 27 to the end of your pregnancy)âlike you canât get any biggerâbut trust me; youâre about to! As your belly swells; your little one grows to between 6 and 9 pounds during this time.
A trimester is a third of a typical pregnancy. So if a pregnancy is 9 months, a trimester is 3 months long. The first and second trimester each have 13 weeks, while the third trimester has 14 weeks. Determining how far along you are in a pregnancy can get confusing.