Describe the Structure and Function of the Human Brain

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DISCUSS THE STRUCTURE AND FUNCTION OF THE HUMAN BRAIN. According to Cowan (1979) the brain is the development of a tissue of fluid filled tube out of which three swellings become prominent. These swellings develop into the forebrain, midbrain and the hindbrain. The development starts at the gestation period. As the development become more pronounced the forebrain and hindbrain divides into two parts, and thus the fully formed brain is recognised as having five major divisions which are telencephalon and diencephalon (which together constitutes the forebrain), the midbrain which is also called the mesencephalon and the hindbrain. Their function ranges from memory, planning, vision and body movement. However the analysis before hand is an endeavour to table out the structures of the brain and their functions. Neave (2008) asserts that the mind is made up of the forebrain which consists of the cerebrum, thalamus and hypothalamus which make up the limbic system .The midbrain consists of the tectum and tegmentum whilst the hindbrain is made up of the cerebellum, pons and medulla. Often the midbrains, pons and medulla are referred together as brainstem. The telencephalon comprises of three elements which are the cortex, limbic system and the basal ganglia whilst the Diencephalon consists of the thalamus and hypothalamus. THE FOREBRAIN THE CEREBRAL CORTEX The cerebral cortex is a thin mantle of gray matter covering the surface of each cerebral hemisphere. The most notable features of the telencephalon are the two large and roughly symmetrical hemispheres’ which are in fact separate functional systems interconnected by major fibre pathways called the cerebral commissures. The principal commissures is the corpus callosum which according to Nearve (2008) literally means “hard body” and this wrist –thick bundle of fibres connects the corresponding regions of

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