Preterm birth, also known as premature birth, is the birth of a baby at less than 37 weeks gestational age. These babies are known as preemies or premmies. Symptoms of preterm labor include uterine contractions which occur more often than every ten minutes or the leaking of fluid from the vagina.
The cerebral cortex plays a key role in memory, attention, perception, awareness, thought, language, and consciousness. The human cerebral cortex is 2 to 4 millimetres (0.079 to 0.157 in) thick. In large mammals, the cerebral cortex is folded, giving a much greater surface area in the confined volume of the skull.n the human brain more than two-thirds of the cerebral cortex is buried in the sulci. The cerebral cortex is gray matter, consisting mainly of cell bodies (with astrocytes being the most abundant cell type in the cortex as well as the human brain as a whole) and capillaries.
Cerebral Cortex The cerebral cortex is the outer surface of the cerebral hemispheres. It is the highest level of the brain and has about 20 billion neurons in the human brain which carry out the highest levels of mental functioning. The cerebral cortex is a layer of grey matter up to about 1/2 cm thick.Figure 3-2d shows a cross section of the cerebral hemispheres with the cortex shown as the pink layer on their outer surface.Figure 4-2d shows a highly magnified slice through the cortex. It is stained with a dye that colors (only) the cell bodies of neurons and glia blue.igure 3-2d shows a cross section of the cerebral hemispheres with the cortex shown as the pink layer on their outer surface. Figure 4-2d shows a highly magnified slice through the cortex. It is stained with a dye that colors (only) the cell bodies of neurons and glia blue.