In this diagram of a duplicated chromosome, (2) identifies the centromereâthe region that joins the two sister chromatids, or each half of the chromosome. In prophase of mitosis, specialized regions on centromeres called kinetochores attach chromosomes to spindle fibers. The centromere is the part of a chromosome that links sister chromatids or a dyad. During mitosis, spindle fibers attach to the centromere via the kinetochore. Centromeres were first thought to be genetic loci that direct the behavior of chromosomes.
Carotid Artery Pain in Left Side of Neck. The carotid artery pain in left side of neck means (if this is the case) that there may be carotid artery disease which is when the arteries that supply the brain (its front) with oxygenated blood, get narrowed.hen the carotid arteries get dilated or distended the carotidynia occurs. It has 3 types: classic, migrainous and arteriosclerotic, and all of them lead to pain in left side of neck, as well as to face, head or ear pain.
Clogged neck blockage is a dreadful condition, wherein the supply of blood to the brain is affected. As such, the arteries in the neck are responsible for blood supply to the brain. When the arteries get clogged, a person may experience its harsh effects on his/her body, depending upon the severity of the blockage.That being said, clogged neck arteries symptoms vary from mild dizziness to a heart stroke.The irony lies in the fact that the sufferer may live with this condition for several years without the exhibition of major symptoms.The subtle symptoms may cause hazardous health complications in the years to come.hat being said, clogged neck arteries symptoms vary from mild dizziness to a heart stroke. The irony lies in the fact that the sufferer may live with this condition for several years without the exhibition of major symptoms. The subtle symptoms may cause hazardous health complications in the years to come.