Medsci 142-Neurons Exam Questions With Correct Answers

Medsci 142-Neurons Exam Questions With Correct Answers Epithalamus - answerA small region superior and posterior to the thalamus. Consists of the pineal gland and habenular nuclei. Pineal Gland - answerAbout the size of a pea. Located in the epithalamus. Protrudes from the posterior midline of the third ventricle . Part of the endocrine system because it secretes the hormone melatonin (hormone for signalling sleep). Habenuclear Nuclei - answerInvolved in olfaction, especially emotional responses to smells. e.g. Mum's cookies, loved ones cologne. Olfaction - answerAction of smelling Post-Central Gyrus - answerPrimary sensory cortex. A lesion in this area may stop feeling to the corresponding area of the body. Pre-Central Gyrus - answerPrimary motor function (motor strip). Every cell involved in muscle movement is located there. Each position corresponds to a muscle in the body. E.g. a specific points moves your thumb. Soma topically organised (homunculus-body map). ©SIRJOEL EXAM SOLUTIONS 12/3/2024 11:27AM Central Sulcus - answerKey defining landmark Frontal Lobe - answerFrontal association cortex-Intelligence, personality, behaviour, mood, cognitive function Occipital Lobe - answerSlightly more tightly packed gyrus Temporal Lobe - answerTemporal association cortex-memory, mood, aggression, intelligence Pariental Lobe - answerParietal association cortex-spatial skills, 3D recognition, shapes, face, concept, abstract, perception. Pareto Occipital Sulcus - answer Lateral Fissure - answerChasm most obvious Wernicke's Area - answerSecondary auditory cortex. Identifies sounds. Higher processing e.g. pen clicking in the background, interpret speech. Fluent Aphasia - answerA lesion in the Wernick's area. This means able to talk but not make any sense. able to understand speech. To test this you ask them a question and if they answer in way that is not comprehendible then they have fluent aphasia Broca's Area - answerLocated next to the pre-central sulcus. The ability to formulate speech. Area right next to where the point where lip motion is located on the pre-central gyrus. ©SIRJOEL EXAM SOLUTIONS 12/3/2024 11:27AM Arcuate Fascicules - answerA connection between the Wernicke's area and the Broca's area. Arch shaped. Millions of fibres connecting them. This allows the brain to understand speech and than formulate speech effectively. Connectional Aphasia - answerA lesion located on the arcuate fascicules. this is tested by telling the person to copy what you say and if they can't they have this type of aphasia Non-Fluent Aphasia/ Motor Aphasia - answerA lesion located on the Broca's area. This is when the person cannot formulate speech Primary Auditory Cortex - answerLocated next to the Wernicke's area. Responsible to take info from your other side of the body celled totemic representation. Divides tones and moves them into the Wernicke's area. Angular Gyrus - answerlocated close to the post-central gyrus. located on the inferior gyrus. Involved in writing for planning and carrying out the action. Supra-marginal Gyrus - answerNext to the angular gyrus. For the planning and action of reading. Exner's Area - answerHas to two parts. the top part are muscles for the eye and hand. The bottom part are the muscles for reading writing. Forebrain, Midbrain, Hindbrain - answer Primary Visual Cortex - answerSense of sight