PATHOPHYSIOLOGY - NEUROLOGIC SYSTEM QUESTIONS
WITH DETAILED VERIFIED AND 100% ACCURATE
ANSWERS
durcentral nervous system Correct Answers brain and spinal cord
peripheral nervous system Correct Answers cranial and spinal nerves
- sensor neurons
- neuromuscular junctions
brain is protected by Correct Answers ¡Rigid bone of skull
¡3 membranes of the meninges
¡Cerebrospinal fluid (CSF)
Meninges include Correct Answers dura mater, arachnoid mater, pia
mater
dura mater Correct Answers ¡Outer layer (closest to the bone)-tough
fibrous membrane collects venous blood and CSF to return to general
circulation
Subdural space- Correct Answers beneath dura layer normally empty
Arachnoid- Correct Answers Middle layer- weblike covering
,Subarachnoid space- Correct Answers Contains cerebrospinal fluid
(CSF) and cerebral arteries and veins
Pia mater Correct Answers ¡Adheres to the surface of the brain- has
many blood vessels
¡CSF information Correct Answers ¡Provides cushion for brain and
spinal cord
¡Similar to plasma in appearance
¡Clear colorless liquid- has different electrolyte, glucose, protein
concentrations
¡CSF is formed constantly by choroid plexuses of all 4 ventricles
¡Choroid plexuses 2 purposes- forms CSF and forms blood brain barrier
¡Flows though the four ventricles and into subarachnoid space-
circulates around the brain and spinal cord
¡Equal amounts of CSF need to be produced and reabsorbed to maintain
intracranial pressure (ICP).
¡Change in characteristics of CSF is a useful diagnostic tool
Blood-brain barrier- Correct Answers protective mechanism by mostly
impermeable capillaries
blood brain barrier information Correct Answers ¡Limits passage of
materials into the brain including many medications (alcohol passes
freely)
¡Controls balance of electrolytes, glucose, and proteins in the brain
, ¡Lipid-soluble substances can easily pass.
¡Can be a disadvantage- does not let many medications pass such as
antibiotics and anticancer
¡Poorly developed in neonates leaves them susceptible to substances
such as bilirubin
Gyri- Correct Answers elevations
Sulci- Correct Answers grooves
Longitudinal fissure separates Correct Answers two hemispheres
Cortex- Correct Answers a thin layer of gray matter covering the surface
of each cerebral hemisphere
Gray matter Correct Answers nerve cell bodies
Corpus callosum- Correct Answers nerve fibers
White matter"— Correct Answers ¡myelinated nerve bundles (tracts)
- connects hemispheres
Each hemisphere is divided into Correct Answers ¡four major lobes.
¡Frontal, parietal, temporal, and occipital lobes
WITH DETAILED VERIFIED AND 100% ACCURATE
ANSWERS
durcentral nervous system Correct Answers brain and spinal cord
peripheral nervous system Correct Answers cranial and spinal nerves
- sensor neurons
- neuromuscular junctions
brain is protected by Correct Answers ¡Rigid bone of skull
¡3 membranes of the meninges
¡Cerebrospinal fluid (CSF)
Meninges include Correct Answers dura mater, arachnoid mater, pia
mater
dura mater Correct Answers ¡Outer layer (closest to the bone)-tough
fibrous membrane collects venous blood and CSF to return to general
circulation
Subdural space- Correct Answers beneath dura layer normally empty
Arachnoid- Correct Answers Middle layer- weblike covering
,Subarachnoid space- Correct Answers Contains cerebrospinal fluid
(CSF) and cerebral arteries and veins
Pia mater Correct Answers ¡Adheres to the surface of the brain- has
many blood vessels
¡CSF information Correct Answers ¡Provides cushion for brain and
spinal cord
¡Similar to plasma in appearance
¡Clear colorless liquid- has different electrolyte, glucose, protein
concentrations
¡CSF is formed constantly by choroid plexuses of all 4 ventricles
¡Choroid plexuses 2 purposes- forms CSF and forms blood brain barrier
¡Flows though the four ventricles and into subarachnoid space-
circulates around the brain and spinal cord
¡Equal amounts of CSF need to be produced and reabsorbed to maintain
intracranial pressure (ICP).
¡Change in characteristics of CSF is a useful diagnostic tool
Blood-brain barrier- Correct Answers protective mechanism by mostly
impermeable capillaries
blood brain barrier information Correct Answers ¡Limits passage of
materials into the brain including many medications (alcohol passes
freely)
¡Controls balance of electrolytes, glucose, and proteins in the brain
, ¡Lipid-soluble substances can easily pass.
¡Can be a disadvantage- does not let many medications pass such as
antibiotics and anticancer
¡Poorly developed in neonates leaves them susceptible to substances
such as bilirubin
Gyri- Correct Answers elevations
Sulci- Correct Answers grooves
Longitudinal fissure separates Correct Answers two hemispheres
Cortex- Correct Answers a thin layer of gray matter covering the surface
of each cerebral hemisphere
Gray matter Correct Answers nerve cell bodies
Corpus callosum- Correct Answers nerve fibers
White matter"— Correct Answers ¡myelinated nerve bundles (tracts)
- connects hemispheres
Each hemisphere is divided into Correct Answers ¡four major lobes.
¡Frontal, parietal, temporal, and occipital lobes
