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Unformatted text preview: The Central Nervous System Meninges Dura matter Arachnoid matter Pia matter Cerebrospinal Fluid (CSF) Produced by Choroid plexuses in ventricles Protection & homeostasis Brain Forebrain (proencephalon) Midbrain (mesencephalon) Hindbrain (rhombencephalon) Proencephalon Cerebrum Gyri (Pre- and postcentral) Sulci Lobes Diencephalon Thalamus Hypothalamus Pineal gland Mesencephalon and Rhombencephalon Midbrain - connects forebrain and hindbrain Hindbrain Medulla oblongata Pons Cerebellum 4th ventricle Medulla Oblongata Nervous connection between brain and Spinal Cord Cranial Nerves IXXII Important control center Pons Cranial Nerves VVII Sleep, Respiration, Bladder Cerebellum Coordination center monitors sensory input Adjusts motor functions Balance and equilibrium Spinal Cord
CE = brachial plexus LE = lumbosacral plexus 31 pairs of spinal nn Spinal Nerves Spinal nerves are mixed nerves as are branches Posterior rami = deep back Anterior rami = anterior/lateral trunk and limbs Clinical Applications Spinal Tap Check for infection Relieve pressure Introduce antibiotics Clinical Applications
Epidurals Spinal nerve roots in cauda equina Loss of sensation inferior to level of block Also placed in sacral hiatus following filum terminale Clinical Applications
Head injuries Concussion Contusion Compression ...
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