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Reflectionlearning insight which among the four 4

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Reflection/Learning Insight: Which among the four (4) conscious experiences are youmost inclined? Why do you say so?Lesson 3.4 - Neural conduction and synaptic transmissionYou notice that every topic discussed bears much on brain process, hence thispart may be backward but is equally hopeful to enable you to understand the wholeprocess of sensation to perception and conscious experiences. Let me take you to aquick tour thru the brain as almost every behavior is controlled by the master controlcenter of the entirety of the nervous system.A tour thru the brainThe brain has three main parts: the forebrain – thebiggest part, the midbrain – the smallest part and thehindbrain. In terms of functions, the hindbrain has thefollowing key structures: the medulla, the pons and thecerebellum. The medulla serves life survival functions, theponsfunction inrespiration, movement, waking, sleepingand dreamingwhile thecerebellumfunctions incoordinatingfinemuscularmovement, balance and someaspects of perception and cognition.Take a look at figure 3.12.The smallest part themidbraincoordinates movement patterns, sleep and arousal. TheReticularFormation– is an anarchaic term for the cells found in thehindbrain, midbrain and brainstem, screens incoming informationFig 3.12 Structure of a human brainFig. 3.13 Outcome reaction of the forebrain
and controls bodily arousal. TheForebrainis a collection of upper-level brain structures,including the thalamus, hypothalamus and the limbic system. Thethalamusrelayssensory messages to the cerebral cortex; thehypothalamusis responsible for humandrives, hormones and regulation of the body’s internal environment. TheLimbic Systemis an interconnected group of forebrain structures that are involved with emotions,drives and memory. TheCerebral Cortexis a surface layer on the left and right cerebralhemispheres and it functions in regulating most complex behavior, including sensations,motor control and higher mental processes. Figure 3.13 illustrates the possible outcomebehavior of the structures of forebrain.Lobes of the Cerebral cortex (projection areas of the brain)The brain is composed of lobes: Frontal, parietal, temporal and occipital lobes. Interms of responding, thefrontal lobereceives and coordinates messages from otherlobes as it is also responsible for motor control, speech production and higher functions,such as thinking, personality, emotion and memory. The case of Phineas Gage’s miningaccident sent a 13-pound tamping iron through his frontal lobes and this affected hisshort and long-term behavior and mental processes.Theparietal lobesare located atthe top of the brain directly behind the frontal lobes and are responsible for interpretingbodily sensations. Thetemporal Lobesare locatedon each side of the brain above theears and are responsible for audition, language comprehension, memory and someemotional control. Finally, the occipital Lobes located at the back of the brain areresponsible for vision and visual perception.

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Term
Fall
Professor
NoProfessor
Tags
hair cell, Olfactory receptor neuron

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