PNB 2274 Exam 3 Chen Questions And Answers
Which ascending tract of the spinal cord carries the sensations for fine touch and vibration to the
brain?
medial and lateral pathways
anterolateral pathway
posterior column pathway
corticospinal pathway ANS posterior column pathway
The primary somatosensory cortex is part of the
Frontal lobe
Temporal lobe
Insula
Parietal lobe
Occipital lobe ANS parietal lobe
Match each fiber to its correct type:
1 Corpus Callosum
2 Internal Capsule
3 Arcuate Fasciculus ANS Corpus Callosum - Commisural
Internal Capsule - Projection
Arcuate Fasciculus - Association
,Which is NOT a function of the blood-brain barrier?
It prevents brain neurons from being exposed to drugs
It protects brain neurons from exposure to abnormal ion levels
It prevents nicotine and alcohol from entering brain interstitial fluid
It protects brain neurons from exposure to abnormal hormone levels
It prevents brain neurons from being exposed to waste products in the blood ANS It prevents
nicotine and alcohol from entering brain interstitial fluid
these are fat soluble substances that cross BBB through passive diffusion
how are glucose and amino acids transported across the BBB? ANS active transport
how does penicillin cross the BBB? ANS water soluble substance which has difficulty getting
through
Which of the cerebral lobes is the center for personality, hypothesis generation, verbal
communication, and the voluntary control of skeletal muscles?
temporal
parietal
occipital
,frontal ANS frontal
A neurovascular unit includes (choose all that apply)
Endothelial cells
Pericytes
Microglials
Astrocytes
Interneurons ANS Endothelial cells
Pericytes
Microglials
Astrocytes
Interneurons
Cerebrospinal fluid is produced by the ANS choroid plexus
The concentration of K+ in cerebrospinal fluid is _________ the blood.
the same as
lower than
, higher than ANS lower than
If one's blood brain barrier (BBB) is compromised,
ion concentrations in brain interstitial fluid will be altered.
brain blood flow will increase.
other mechanisms like CSF will protect the brain.
there will be no affect to brain functions. ANS ion concentrations in brain interstitial fluid will be
altered.
Which is NOT a function of cerebrospinal fluid?
CSF transports nutrients and chemicals to the brain.
CSF helps to reduce the effective weight of the brain.
CSF helps to remove waste products from the brain.
CSF helps to promote mitosis within neuronal tissue.
CSF provides a liquid cushion to protect the brain from sudden movements ANS CSF helps to
promote mitosis within neuronal tissue.
Transection at the corpus callosum will result in losing ability to
Which ascending tract of the spinal cord carries the sensations for fine touch and vibration to the
brain?
medial and lateral pathways
anterolateral pathway
posterior column pathway
corticospinal pathway ANS posterior column pathway
The primary somatosensory cortex is part of the
Frontal lobe
Temporal lobe
Insula
Parietal lobe
Occipital lobe ANS parietal lobe
Match each fiber to its correct type:
1 Corpus Callosum
2 Internal Capsule
3 Arcuate Fasciculus ANS Corpus Callosum - Commisural
Internal Capsule - Projection
Arcuate Fasciculus - Association
,Which is NOT a function of the blood-brain barrier?
It prevents brain neurons from being exposed to drugs
It protects brain neurons from exposure to abnormal ion levels
It prevents nicotine and alcohol from entering brain interstitial fluid
It protects brain neurons from exposure to abnormal hormone levels
It prevents brain neurons from being exposed to waste products in the blood ANS It prevents
nicotine and alcohol from entering brain interstitial fluid
these are fat soluble substances that cross BBB through passive diffusion
how are glucose and amino acids transported across the BBB? ANS active transport
how does penicillin cross the BBB? ANS water soluble substance which has difficulty getting
through
Which of the cerebral lobes is the center for personality, hypothesis generation, verbal
communication, and the voluntary control of skeletal muscles?
temporal
parietal
occipital
,frontal ANS frontal
A neurovascular unit includes (choose all that apply)
Endothelial cells
Pericytes
Microglials
Astrocytes
Interneurons ANS Endothelial cells
Pericytes
Microglials
Astrocytes
Interneurons
Cerebrospinal fluid is produced by the ANS choroid plexus
The concentration of K+ in cerebrospinal fluid is _________ the blood.
the same as
lower than
, higher than ANS lower than
If one's blood brain barrier (BBB) is compromised,
ion concentrations in brain interstitial fluid will be altered.
brain blood flow will increase.
other mechanisms like CSF will protect the brain.
there will be no affect to brain functions. ANS ion concentrations in brain interstitial fluid will be
altered.
Which is NOT a function of cerebrospinal fluid?
CSF transports nutrients and chemicals to the brain.
CSF helps to reduce the effective weight of the brain.
CSF helps to remove waste products from the brain.
CSF helps to promote mitosis within neuronal tissue.
CSF provides a liquid cushion to protect the brain from sudden movements ANS CSF helps to
promote mitosis within neuronal tissue.
Transection at the corpus callosum will result in losing ability to
