CNRN Exam Questions with Correct Answers | 100% Certified
Exam
Neurotransmitters - Correct Answer- Chemical substances found in the CNS that excite, inhibit, or modify
the response of another cerebral cell(s)
Dendrites - Correct Answer- Direct impulses toward the cell body
Axon - Correct Answer- Carries impulses away from the cell body
Amines: Acetylcholine (ACh) - Correct Answer- Usually excitatory
Inhibitory effect on some of parasympathetic nervous system
Chief transmitter of the PNS
Amines: Serotonin (5-HT) - Correct Answer- Controls body heat, hunger, behavior and sleep.
Inhibitor of pain pathway cord; helps to control mood and sleep
Cathecholamines: Dopamine (DA) - Correct Answer- Affects control of behavior and fine movement
Usually inhibitory
Cathecholamines: Norepinephrine (NE) - Correct Answer- Chief transmitter of SNS
Usually excitatory can be inhibitory
A.A.: Gamma-aminobutyric acid (GABA) - Correct Answer- Excitatory
A.A.: Glutamic acid - Correct Answer- Excitatory
, Glycine - Correct Answer- Inhibitory
Substance P - Correct Answer- Excitatory
Polypeptides: Enkephalin - Correct Answer- Excitatory to systems that inhibit pain; binds to the same
receptors in the CNS that bind opiates drugs
Polypeptides: Endorphin - Correct Answer- Binds to opiate receptors in the brain and pituitary gland;
excitatory to systems that inhibit pain
Epidural space - Correct Answer- Located between the skull & dura mater
Subdural space - Correct Answer- Located between the inner dura mater & the arachnoid layer
Subarachnoid space - Correct Answer- Located between the arachnoid & pia mater layers.
Contains CSF
What is the specific gravity of CSF? - Correct Answer- 1.007
Amount of CSF in adults? - Correct Answer- 125-150ml
Choroid plexus - Correct Answer- A collection of blood vessels covered by a thin coating of ependymal
cells
Name the 3 produces of CSF fluid - Correct Answer- Choroid plexus, ependymal cells and blood vessels of
the brain
What area does the MCA supply? - Correct Answer- Entire lateral surfaces of the hemispheres except for
the occipital pole & the inferolateral surface of the hemisphere
Exam
Neurotransmitters - Correct Answer- Chemical substances found in the CNS that excite, inhibit, or modify
the response of another cerebral cell(s)
Dendrites - Correct Answer- Direct impulses toward the cell body
Axon - Correct Answer- Carries impulses away from the cell body
Amines: Acetylcholine (ACh) - Correct Answer- Usually excitatory
Inhibitory effect on some of parasympathetic nervous system
Chief transmitter of the PNS
Amines: Serotonin (5-HT) - Correct Answer- Controls body heat, hunger, behavior and sleep.
Inhibitor of pain pathway cord; helps to control mood and sleep
Cathecholamines: Dopamine (DA) - Correct Answer- Affects control of behavior and fine movement
Usually inhibitory
Cathecholamines: Norepinephrine (NE) - Correct Answer- Chief transmitter of SNS
Usually excitatory can be inhibitory
A.A.: Gamma-aminobutyric acid (GABA) - Correct Answer- Excitatory
A.A.: Glutamic acid - Correct Answer- Excitatory
, Glycine - Correct Answer- Inhibitory
Substance P - Correct Answer- Excitatory
Polypeptides: Enkephalin - Correct Answer- Excitatory to systems that inhibit pain; binds to the same
receptors in the CNS that bind opiates drugs
Polypeptides: Endorphin - Correct Answer- Binds to opiate receptors in the brain and pituitary gland;
excitatory to systems that inhibit pain
Epidural space - Correct Answer- Located between the skull & dura mater
Subdural space - Correct Answer- Located between the inner dura mater & the arachnoid layer
Subarachnoid space - Correct Answer- Located between the arachnoid & pia mater layers.
Contains CSF
What is the specific gravity of CSF? - Correct Answer- 1.007
Amount of CSF in adults? - Correct Answer- 125-150ml
Choroid plexus - Correct Answer- A collection of blood vessels covered by a thin coating of ependymal
cells
Name the 3 produces of CSF fluid - Correct Answer- Choroid plexus, ependymal cells and blood vessels of
the brain
What area does the MCA supply? - Correct Answer- Entire lateral surfaces of the hemispheres except for
the occipital pole & the inferolateral surface of the hemisphere
