PSYC 372 Lecture Notes - Lecture 6: Periaqueductal Gray, Brainstem, Putamen

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Dorsal: toward the back and top of the head. Planes: horizontal, sagittal, coronal divisions of ns. Cns: part encased in brain and spinal cord. Carry info from cns to muscles and glands somatic ns. Transmits info to voluntary skeletal muscles from cns autonomic ns: regulates automatic behaviors of body. Sympathetic: mobilizes energy resources to prep for rigorous activity. Increases fight or flight response, mainly uses ne. Parasympathetic: facilitates vegetative, non-emergency responses by organs. Ventricles: 4 fluid-filled cavities that contain cerebrospinal fluid. Cerebrospinal fluid: clear fluid found in brain and spinal cord. Reservoir of hormones and nutrition for the brain and spinal cord forebrain: anterior and prominent part of the brain. Outer portion (cerebral cortex) and subcortical regions. Cerebral cortex: consists of cellular layers on the outer surface. Corpus callosum: connects 2 hemispheres of brain. 2 subcortical regions: basal ganglia and limbic system. Diencephalon limbic system: consists of several structures that form a border around the brainstem.

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