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Published byAlly Harston Modified over 9 years ago
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Parts of the brain
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Protection Not really part but… The brain is well protected Bony skull 3 protective sheets of tissue Space in the brain is filled with fluid: –Cerebrospinal fluid (CSF) –Acts as a shock absorber
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A brain of two halves Left hemisphere and right hemisphere They are joined by the corpus callosum Made up of axons of neurons that communicate information between hemispheres
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Wrinkles Cerebral cortex forms the outer layer of the forebrain It appears wrinkled as it is folded Folding allows more outer cortex to be fitted into a smaller space A groove is called a sulcus Between grooves is a gyrus
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Major parts
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Brain stem Mid brain: Nerve pathway of cerebral hemispheres/Auditory and Visual reflex centers Pons: Respiratory Center Medulla Oblongata: Crossing of motor tracts/Cardiac Center/Respiratory Center
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Cerebellum – Plays a role in commands for motor action Organization of action including language production Integrates information from external and internal sources Toates p119 Major parts
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Occipital lobe: visual perception system E.g., visuospatial processing, discrimination of movement and colour discrimination Lesions can cause visual hallucinations
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Major parts Parietal lobe – Several portions are important in language processing Also, somatosensation: touch, pain, temperature sense, and limb proprioception (limb position)
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Major parts Frontal lobe – emotional control centre and home to our personality Motor function, problem solving, spontaneity, memory, language, initiation, judgement, impulse control, and social and sexual behaviour Effects of frontal damage can be a dramatic change in social behaviour
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