Titlebook: Neuroscience in Medicine; P. Michael Conn Book 20032nd edition Springer Science+Business Media New York 2003 Brain function.Parkinson.anat

Lobotomy

,The Choroid Plexus—CSF Nexus,in the four ventricles is the source of up to 80–90% of this actively secreted transcellular CSF, which is derived from the carotid and vertebral blood supplies. As the CSF flows from its choroidal origins to more distal sites, it comes into contact with other membranes that encompass brain tissue:

inquisitive

Organization of the Spinal Cord, neurons in the spinal cord project their axons into the periphery to innervate muscles and autonomic ganglia. Somatic perceptions, coordinated movements, and autonomic functions depend on the integrity of the spinal cord and its projections. The neurons and fiber bundles within the spinal cord are

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JEER

The Brainstem,–3; Chapter 2, Figs. 5–9). The brainstem is continuous with the spinal cord at the foramen magnum of the occipital bone and with the diencephalon at the incisura of the tentorium and the posterior clinoid processes of the sphenoid bone. It consists of the midbrain, pons, and medulla, which lie in cl

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The Brainstem Reticular Formation and the Monoamine System,tegmentum. The reticular pathways integrate sensory, visceral, limbic, and motor functions, and project throughout the central nervous system (CNS). Reticular circuits exert important influences on autonomic regulation of vital organ systems, behavior, somatic motor activities, sleep cycles, alertne

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The Trigeminal System,r component innervates the muscles of mastication. Fine (discriminatory) tactile, general (light) tactile, proprioceptive, thermal, and pain sensory modalities are conveyed to the trigeminal nuclei in the brainstem. Axons from the sensory trigeminal nuclei contribute to important reflex circuits and

EXTOL

The Oculomotor System,. This system operates under very fine tolerances. The fovea, the region of highest visual acuity on the retina, “sees” only an area about the size of a quarter held at arm length. Thus, the eyes must be precisely directed toward an object of interest and held in that position for precise and clear

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The Hypothalamus,for changing external conditions, such as variations in temperature, energy, or defensive requirements. The constancy of the internal environment resulting from these fine adjustments made by the hypothalamus is known as .. The hypothalamus maintains homeostasis by exerting control over the two regu

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The Cerebral Cortex,w its surface is a complex network of neurons and axons. The cerebral cortex is not uniform; rather, it is composed of many structurally and functionally unique subunits that perform a wide range of sensory, motor, and mnemonic processes associated with cognition. Cortex organizes affective behavior

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