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.
Coronary artery disease is caused by hardening of the arteries, or atherosclerosis. This means that fatty deposits called plaque build up inside the arteries. Arteries are the blood vessels that carry oxygen-rich blood throughout your body.Atherosclerosis can affect any arteries in the body.When it occurs in the arteries that supply blood to the heart (the coronary arteries), it is called coronary artery disease.When plaque builds up in the coronary arteries, the heart may not get the blood that it needs to work well. This is called ischemia (say is-KEE-mee-uh).Ischemia can cause symptoms such as chest pain or pressure. Over time, ischemia can weaken or damage the heart.rteries are the blood vessels that carry oxygen-rich blood throughout your body. Atherosclerosis can affect any arteries in the body. When it occurs in the arteries that supply blood to the heart (the coronary arteries), it is called coronary artery disease.