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A&P 241 CNS

Unit 11- CNS; Veselovsky

Grey Matter used for memory, perception, and integration. forms the brain's cortex, basil nuclei, horns, and ganglia of the spinal cord.
Cortex the brain's outer surface. contains areas of thought and memory
Basal nucleus isolate area of grey matter embedded in white matter. Integrate and coordinate information.
Horns deep within the white matter. send and receive information directly to and from the PNS and responsible for controlling most of the body's reflexes.
Ganglion collection of nerve cell bodies. receiving sensory information
White matter used for relaying information from one are to another.
Nerve Tracts bundles of myelinated nerves. relaying information between its cortex and basal nuclei.
White Columns (Fasciculi) myelinated nerves relay infromation to and from the brain.
Meninges three layers of dense connective tissue that surround and protect the brain.
dura mater closest to the bone, outermost meningeal layer.
Arachnoid middle meningeal layer; possesses profections called arachnoid villi
Pia Mater innermost meningeal layer
Choroid Plexus where cerebrospinal fluid originates; has 4 called ventricles
Lateral Ventricles first and second ventricles; convey their fluid to the interventricular foamen which connects to the thrid ventricle
Third Ventricle located in brain stem; conveys fluid to the cerebral aqueduct and connect to the fourth
Fourth Ventricle at the base of the cerebellum. conveys is fluid to the median and lateral apertures.
Olfactory Nerve Special somatic sensory cerve; conducts the sense of smell
Optic Nerve Special Somatic Sensory Nerve; conducts visual information to the brain
Oculomotor nerve motor nerve; controls some of the eyes' extrinsic eye muscles (eye movements) and intrinsic eye muscles (pupil size and focusing)
Created by: briannamurr



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