HUBS1107 Lecture Notes - Lecture 11: Arachnoid Mater, Precentral Gyrus, Dura Mater

• School: University of Newcastle
• Department: Human Biosciences
• Course: HUBS1107
• Professor: Josephine Smith

Document Summary

The telencephalon covers over the diencephalon, which has some very important parts of the brain. The thalamus is like a relay centre and the hypothalamus (below the thalamus) controls the endocrine functions, all the hormones and secretions into the bloodstream. "cerebral cortex" = grey matter (neuron cell bodies) on outside of each hemisphere. Folds (=gyri) and grooves (=sulci) to increase surface area -> increasing the number of neurons -> increasing the capacity for neural processing -> allowing higher functions. The neuron (cell bodies) are on the outer surface of the brain, creating the grey matter with the inner surface filled with fibres (white matter) Sometimes they match up with specific functions and so(cid:373)eti(cid:373)es they do(cid:374)"t. Deep grooves in the brain: lateral sulcus, central sulcus, parieto- occipital sulcus. Central sulcus is important in distinguishing the frontal lobe and parietal lobe. Lateral sulcus separates the temporal lobe from the frontal and parietal. Important gyrus in the brain: pre-central and post-central gyrus.