CNS & Meninges lecture

CNS & Meninges lecture - Anatomy &...

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Unformatted text preview: Anatomy & Physiology Largest part of your brain Contains billons of neurons Divided into 2 hemispheres Receives sensory info, interprets & coordinates associated motor function Surface is folded like hills & gulleys Hills = convolution or gyrus Gulleys = sulcus (shallow grooves) Associated with higher brain function Planning, reasoning, analyzing, storing & retrieving memories 4 larger sulcuses that divide the cerebrum into lobes Named after the bones that surround them: Frontal, parietal, temporal & occipital 4 Lobes of the Brain 5 th Part is the Insula and cannot be seen because it is DEEP to the T, P and F lobes. Pre and Post Central Gyrus Posterior to brain stem & inferior to cerebrum Largest part of hindbrain Cerebellar hemispheres connected by narrow bridge known as vermis Slender, transverse parallel folds called folia Aids cerebrum with motor function Processes info about time, language, conceptual movement What Does the Cerebellum Look Like? Vermis Arbor Vitae = The Tree of Life Cerebellar white matter looks like a tree Main Function of Cerebellum Is to initiate and control fine motor movements. It helps with coordination. It allows you to perform coordinated complex sequences of skeletal muscle contractions. ***It regulates posture and balance. Think of all skilled motor activities. (dancing, catching a ball, jumping hurdles, etc.) Thalamus Egg shaped bodies that surround 3 rd ventricle Gateway to cerebral cortex Sensory info to cerebral cortex Motor activities Filterer of information Memory & Emotional Function (limbic system) Hypothalmus Forms floor of 3 rd Ventricle & extends to optic chiasm Mammillary bodies relay info from limbic system to thalamus Pituitary gland between mammillary bodies & optic chiasm ANS & Endocrine Hormone secretion...
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CNS & Meninges lecture - Anatomy &...

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