Pressure, Impact, Replaced
_____ or ______ can damage the brain, and the neurons cannot be ________.
Skull/Vertebral Column, Membranes, Cerebral Spinal Fluid, Blood-Brain Barrier
Four major parts of CNS protection:
MEMBRANES: First layer after skull: Double layerd membrane.
Periosteal (outer), Meningeal (inner)
MEMBRANES: Two layers of Dura Mater
MEMBRANES: Second layer after skull: a web-like mater that projects through Dura Mater, and through villi CSF is absorbed into veinous blood.
MEMBRANES: Third layer after skull (just before the brain): Lamenates the surface of the brain and traces all folds.
MEMBRANES: Inflamation of the maters/ membranes, caused by bacteria.
MEMBRANES: Inflamation of brain tissue.
Cerebral Spinal Fluid
Similar to blood plasma, less protien, more vitamin C.
Circulates through ventricles and cerebral aqueducts, and also surrounds spinal chord.
CSF is produced in the _______.
CSF: A lower lumbar extraction, drops CSF pressure, a diagnostic tool.
CSF: A treatable condition in which there is too much fluid in the brian.
Controlls and supresses all fluctuations in ions, nutrients, and hormones in the brain. Its goal is to keep fluids in the brain constant.
What CAN penetrate the Blood-Brain Barrier
BBB: Glucose, Water, Essential Amino Acids, Fats, O2, CO2, Nicotine, Anethetic.
BBB: Cappilaries in BBB are ____ ______________ in the body.