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MSU ANTR 350 - Brain

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ANTR 350 1st Edition Lecture 11Outline of Last Lecture I. Overview of nervous systemII. Anatomy of neuronsIII. Types of neuronsIV. GliaV. Neuron classificationOutline of Current Lecture II. Functions of CNSIII. CSFIV. Clinical correlatesV. Cerebrum VI. Diencephalon VII. Cerebellum Current Lecture-functions of CNS-processes incoming information from PNS via sensory neurons-initiates response if needed via motor neurons-cerebrospinal fluid (CSF)-produced in the 4 ventricles of the brain by the choroid plexus -reabsorbed into the bloodstream by dural venous circulation in the cranial cavity through a structure called arachnoid villus-clinical correlates-hydrocephalus: increase in CSF production and lack of proper drainage leads to accumulation of extra CSF volume-treatment: shunt-meningitis: inflammation of meninges in brain or spinal cordThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.-bacterial is more serious than viral-physicians test: touch your chin to your chest, if neck flexion is stiff order a CSF analysis-cerebrum-outer layer of grey matter called the cerebral cortex-inner core of white matter-surface is highly convoluted consisting of raised regions called gyri and separated by grooves called sulci-lobes1. frontal: higher intellectual function, personality, voluntary motor control of skeletal muscle2. parietal: sensory, understanding speech and expressing thoughts and emotions3. temporal: primary auditory cortex, interpretation of olfactory sensations4. occipital: primary visual cortex-lateral ventricles filled with CSF: hollow cavities within cerebrum-diencephalon: located in the central core of the brain; connects the cerebrum to the brainstem-thalamus: right and left cerebellar lobes separated by third ventricle-hypothalamus: master control of ANS-primary link between the nervous system and the endocrine system; physically connected to the pituitary gland-regulates: hunger, thirst, body temperature, sleep-wake cycles, rage, sexual desire-cerebellum-2 lobes connected by the vermus-located posteriorly, inferior to the occipital lobe and posterior to the pons and medulla oblongata and 4th ventricle-responsible for coordination of skeletal muscle contractions-damage or disease produces ataxia (inability to coordinate voluntary motor


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