Individual variability of the brain occipital lobes height and their blood supply

Abstract

200 hemispheres of the brain of people who died from diseases not related to brain pathology were studied. The morphometric method was used and statistical analysis was performed. It was found that men and women with dolichocranial type of skull have an asymmetry in the height of the hemispheres of the brain. In men, the height of the left hemisphere of the brain is greater than in women, but the height of the right hemisphere of the brain in men is less. The height of the left hemisphere of the brain in men with mesocranial type is greater than the right, in women the height of the right hemisphere of the brain prevails. In people with brachycranial type of skull, the height of the left hemisphere of the brain prevails in men, in women the height of the right and left hemispheres of the brain are the same. According to the dolichocranial type of skull, the height of the left occipital lobe predominates in men, and the height of the right occipital lobe predominates in women. The height of the left occipital lobe in men with mesocranial type of skull is greater than the right. In women with mesocranial type of skull, the height of the left occipital lobe predominates. In people with brachycranial type of skull, the height of the right occipital lobe of the brain prevails in both men and women. The height of the cerebral hemispheres in men and women with brachycranial type of skull is greater than in those with mesocranial and dolichocranial. The height of the occipital lobes of the brain in men and women with dolichocranial type of skull is slightly higher than in those with mesocranial and brachycranial. Sources of blood supply to the formations of the medial surface of the occipital lobe of the brain - the branches of the posterior cerebral artery, which are divided according to their areas of blood supply to the parieto-occipital, calcarine spur and cuneus. Keywords: endbrain, occipital lobe, individual anatomical variability.