Lacunar cerebral infarction refers to old or new infarctions deep within the brain. When this occurs, lacunas or holes are formed. Depending on the infracted blood vessels, symptoms like limb numbness, dizziness, headache, aphasia and clumsiness may occur. This is due to the small arteries being blocked. Lacunar cerebral infarction may be caused by cerebral arteriosclerosis and hypertension.
cytokinesis. Cytokinesis is the physical process of cell division, which divides the cytoplasm of a parental cell into two daughter cells. It occurs concurrently with two types of nuclear division called mitosis and meiosis, which occur in animal cells.
Mitosis and cytokinesis together define the mitotic (M) phase of an animal cell cycleâthe division of the mother cell into two daughter cells, genetically identical to each other and to their parent cell.n general, mitosis (division of the nucleus) is often followed by cytokinesis, which divides the cytoplasm, organelles and cell membrane into two new cells containing roughly equal shares of these cellular components.