CSF is produced in the choroid plexus of each ventricle. The choroid plexus is composed of ependymal cells and the cappilaries within the pia mater. CSF is derived from blood plasma. Simular except they differ in ion concentrations. CSF has to be pure of any chemicals or drugs to be allowed to touch the brain. The choroid plexus filters the blood plasma secreted by the ependymal cells to coat the CNS and add buyoancy. CSf starts as blood. The heart pumps it up to the choroid plexus where it is filtered of all proteins, lipids, chemicals, heavy ions, and any other formed elements in blood and waste products in plasma. Once it is collected in the choroid plexus of the lateral ventricles, it goes down into the third ventricle via the cerebral aqueduct and into the fourth ventricle. From the fourth ventricle it exits through either the lateral aperature or the median aperature located on the roof of the fourth ventricle. That exit leads to the subarachnoid space and it coats the CNS removing wastes, adding nutrients, and provididng buoyancy and stability for the brain. CSF enters thearachnoid villi and by force of pressure a on the CSF it is allowed to enter the dural venuouss sinuses without permitting any venuous blood to enter the subarachnoid space. The dirty plasma leaves and enters the blood stream to be filtered by the kidneys and secreted in urine.
Human feces (or stools) are produced by the entire digestive system.
Yes, the cortex wrinkles as a result of cerebrospinal fluid filling the brain over the lifespan. This natural process is known as gyri formation and is essential for increasing the surface area of the brain within the limited space of the skull.
In vivo, the coagulation cascade is initiated by tissue factor (TF) which is exposed to blood following vessel injury. TF forms a complex with factor VIIa, leading to activation of Factor X and subsequent activation of thrombin, resulting in fibrin formation and clot formation.
Turbidity currents are not associated with clear water conditions or low sediment concentrations.
The best primers for PCR should have the following characteristics: specificity to the target DNA sequence, appropriate length (usually 18-22 nucleotides), balanced GC content (40-60), absence of self-complementarity or secondary structures, and minimal primer-dimer formation.
damage to ependymal cells would most likely affect the production and circulation of cerebrospinal fluid within the brain and spinal cord. This could lead to conditions such as hydrocephalus due to impaired fluid balance.
Human feces (or stools) are produced by the entire digestive system.
Nitrogen
The formation of the ozone layer
the adjutant is responsible for the formation of troops. once all units are formed, which of the following correctly describes the adjutants post in formation
potential complications after healing by scar formation include all the following except...A. lack of sensory function in the areaB.contractures and adhesionsC.INCREASED HAIR GROWTHD.keloid formation
Evidence of a chemical reaction include the following: formation of a precipitate formation of a gas change in temperature change in color
Clot formation.
Tornadoes follow a predictable pattern of formation and dissipation.
Glacial erosion
When an egg or ovum is "ruptured," it is typically released from the ovary during ovulation. If fertilization occurs, the sperm will penetrate the egg, leading to the formation of a zygote. If fertilization does not occur, the egg will disintegrate and be reabsorbed by the body.
Glomerular filtration is part of the process in the formation of urine. After the process of glomerular filtration is carried out, most of the fluid goes into the glomerular capsule and then into the renal corpuscle. Some of the fluid is reabsorbed by the body.