EXSC 224 Lecture Notes - Lecture 6: White Matter, Lateral Sulcus, Parieto-Occipital Sulcus
Document Summary
One of the newest parts of the brain. No sensory input directly to frontal lobe. Goes from parieto-occipital sulcus to transverse cerebral fissure. Gyri of insula - associated with taste/ gustatory. Not superficial, it is deep inside the brain, you can separate it from the temporal lobe. Exposed cortex, a region that is separated by a sulcus or fissure. When the brain folds, we see a remarkably similar gyri (folds) in each person. Longitudinal fissure - separates right and left hemispheres. Right - controls/ receives from left side of body. Left - controls/ receives from right side of body. Transverse cerebral fissure - separates cerebellum from cerebrum. Functional areas of the cerebral cortex - all areas are involved in conscious thought. Sensory areas - conscious awareness of sensation. Neurons descend down into spinal cord and synapse onto a neuron to stimulate muscle. Upper motor neurons (pre synaptic) - reside solely in the cns.
