SCRN EXAM QUESTIONS WITH 100%
CORRECT ANSWERS | LATEST
VERSION 2025/2026.
Posterior Cerebral Artery (PCA) - ANS Arises from basilar. Supplies Occipital Lobe , Midbrain,
Thalamus, Pineal Gland, Choroid Plexus, and Corpus Callosum
Symptoms of PCA Stroke - ANS -Contralateral Visual Field Homonymous hemianopia
-Visual Agnosia (unable to interpret/recognize visual information)
- Weber's Syndrome (3rd nerve palsy + contralateral hemiplegia)
-Parinaud's Syndrome (Impaired upwards gaze, convergence-retraction nystagmus, primary
conjugate downward gaze)
Anterior Inferior Cerebellar Artery (AICA) - ANS Feeds anterior inferior parts of the
cerebellum
Symptoms of AICA Stroke - ANS Lateral Pontine Syndrome: vertigo, vomiting, nystagmus,
falling towards the side of the lesion, ipsilateral loss of sensation to the face, ipsilateral facial
paralysis, ipsilateral hearing loss
Posterior Inferior Cerebellar Artery (PICA) - ANS Feeds cerebellum, superior section of the
medulla,. Choroid plexus and fourth ventricle
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,Symptoms of PICA Stroke - ANS Wallenburg Syndrome (lateral Medullary Syndrome): Loss of
pain and temperature sensation in the contralateral trunk and ipsilateral face
Basilar Artery - ANS An artery, formed by the fusion of the vertebral arteries, that supplies
blood to the brainstem (medulla and pons) and to the posterior cerebral arteries.
Symptoms of Basilar Artery Stoke - ANS Coma, quadriparesis, ataxia, dysarthria, CN
dysfunction and visual deficits, Locked in Syndrome, Intranuclear Opthalmoplegia, gaze paresis,
Millard Gulber Syndrome CN VI VII damage (diplopia facial weakness, loss of corneal reflex),
Nausea, vomiting, diplopia, gaze palsy, dysarthria,. vertigo, tinnitus, hemiparesis, and
quadriplegia.
Anterior Cerebral Artery (ACA) - ANS Feeds the media portion of the frontal and parietal
lobes as well as the corpus callosum
Symptoms of ACA Stroke - ANS Contralateral motor/sensory deficits impacting legs > arms
Middle Cerebral Artery (MCA) - ANS Feeds majority of the frontal, parietal, and temporal
lobes, basal ganglia, internal capsule. It is divided M1 - M4
Symptoms of MCA Stroke - ANS -Aphasia if dominant hemisphere
-Neglect if non-dominant hemisphere
-Contralateral motor/sensory loss of face/arm/leg with Arms > Legs
-Anosognosia: neglect or lack of self awareness
Venous Vascular Anatomy - ANS Venous channels enter into venous sinuses located in the
Dura matter.
Superior Sagittal Sinus - ANS Travels posteriorly between the cerebral hemispheres towards
the occiput
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, Straight Sinus - ANS Travels along the tentorium, draining blood from the superior cerebellar
veins.
Transverse Sinus - ANS Travels along the base of the occiput laterally and forwardly
Sigmoid Sinus - ANS Begins beneath the temporal bone and travels to the jugular foramen
where it becomes the internal jugular veins
Stroke Pathophysiology - ANS Arterial blood flow to the brain tissue fails to meet metabolic
demands resulting in cell damage or death. ISCHEMIA FIRST THEN INFARCT.
Penumbra - ANS Zone surrounding the core infarct, damaged by ischemia but not yet
infarcted
---- functionally silent yet metabolically active
Hypoxia leading to Necrotic Pathway - ANS Cell energy failure
Hypoxia leading to Apoptotic Pathway - ANS Programmed cell death in the penumbral zone
ICH Stroke Pathophysiology - ANS Occurs when a cerebral blood vessel opens abnormally
and spills blood into brain tissue.
Classification of ICH Brain Injury - ANS Primary Brain Injury: Direct result of the hematoma
Secondary Brain Injury: Hours or days after ICH, mass effect causes mechanical disruption and
damage to cell membranes
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
CORRECT ANSWERS | LATEST
VERSION 2025/2026.
Posterior Cerebral Artery (PCA) - ANS Arises from basilar. Supplies Occipital Lobe , Midbrain,
Thalamus, Pineal Gland, Choroid Plexus, and Corpus Callosum
Symptoms of PCA Stroke - ANS -Contralateral Visual Field Homonymous hemianopia
-Visual Agnosia (unable to interpret/recognize visual information)
- Weber's Syndrome (3rd nerve palsy + contralateral hemiplegia)
-Parinaud's Syndrome (Impaired upwards gaze, convergence-retraction nystagmus, primary
conjugate downward gaze)
Anterior Inferior Cerebellar Artery (AICA) - ANS Feeds anterior inferior parts of the
cerebellum
Symptoms of AICA Stroke - ANS Lateral Pontine Syndrome: vertigo, vomiting, nystagmus,
falling towards the side of the lesion, ipsilateral loss of sensation to the face, ipsilateral facial
paralysis, ipsilateral hearing loss
Posterior Inferior Cerebellar Artery (PICA) - ANS Feeds cerebellum, superior section of the
medulla,. Choroid plexus and fourth ventricle
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
,Symptoms of PICA Stroke - ANS Wallenburg Syndrome (lateral Medullary Syndrome): Loss of
pain and temperature sensation in the contralateral trunk and ipsilateral face
Basilar Artery - ANS An artery, formed by the fusion of the vertebral arteries, that supplies
blood to the brainstem (medulla and pons) and to the posterior cerebral arteries.
Symptoms of Basilar Artery Stoke - ANS Coma, quadriparesis, ataxia, dysarthria, CN
dysfunction and visual deficits, Locked in Syndrome, Intranuclear Opthalmoplegia, gaze paresis,
Millard Gulber Syndrome CN VI VII damage (diplopia facial weakness, loss of corneal reflex),
Nausea, vomiting, diplopia, gaze palsy, dysarthria,. vertigo, tinnitus, hemiparesis, and
quadriplegia.
Anterior Cerebral Artery (ACA) - ANS Feeds the media portion of the frontal and parietal
lobes as well as the corpus callosum
Symptoms of ACA Stroke - ANS Contralateral motor/sensory deficits impacting legs > arms
Middle Cerebral Artery (MCA) - ANS Feeds majority of the frontal, parietal, and temporal
lobes, basal ganglia, internal capsule. It is divided M1 - M4
Symptoms of MCA Stroke - ANS -Aphasia if dominant hemisphere
-Neglect if non-dominant hemisphere
-Contralateral motor/sensory loss of face/arm/leg with Arms > Legs
-Anosognosia: neglect or lack of self awareness
Venous Vascular Anatomy - ANS Venous channels enter into venous sinuses located in the
Dura matter.
Superior Sagittal Sinus - ANS Travels posteriorly between the cerebral hemispheres towards
the occiput
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
, Straight Sinus - ANS Travels along the tentorium, draining blood from the superior cerebellar
veins.
Transverse Sinus - ANS Travels along the base of the occiput laterally and forwardly
Sigmoid Sinus - ANS Begins beneath the temporal bone and travels to the jugular foramen
where it becomes the internal jugular veins
Stroke Pathophysiology - ANS Arterial blood flow to the brain tissue fails to meet metabolic
demands resulting in cell damage or death. ISCHEMIA FIRST THEN INFARCT.
Penumbra - ANS Zone surrounding the core infarct, damaged by ischemia but not yet
infarcted
---- functionally silent yet metabolically active
Hypoxia leading to Necrotic Pathway - ANS Cell energy failure
Hypoxia leading to Apoptotic Pathway - ANS Programmed cell death in the penumbral zone
ICH Stroke Pathophysiology - ANS Occurs when a cerebral blood vessel opens abnormally
and spills blood into brain tissue.
Classification of ICH Brain Injury - ANS Primary Brain Injury: Direct result of the hematoma
Secondary Brain Injury: Hours or days after ICH, mass effect causes mechanical disruption and
damage to cell membranes
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
