Supplies:
- Medial frontal lobe
- Medial parietal lobe
- Basal ganglia
- Anterior fornix
- Anterior corpus callosum
- Contralateral hemiparesis and hemisensory loss (lower extremities > upper extremities)
- Left hemineglect (right ACA)
- Aphasia (left ACA)
- Grasp and sucking reflex
- Flat affect
- Impaired judgment
- Urinary incontinence
Middle cerebral artery (MCA)
Supplies:
- Lateral frontal lobe (Superior MCA)
- Lateral temporal lobe and portion of parietal lobe (Inferior MCA)
- Internal capsule, corona radiata, basal ganglia (Deep MCA)
- Contralateral face and upper extremity weakness and spasticity (superior MCA)
- Non-fluent aphasia (left superior MCA)
- Hemineglect (right superior MCA)
- Fluent dysphasia (left inferior MCA)
- Right visual field deficit (left inferior MCA)
- Mild contralateral hemiparesis (right inferior MCA)
- Severe left neglect (right inferior MCA)
- Visual field deficits (right inferior MCA)
- Contralateral motor hemiparesis (deep MCA)
- Aphasia (left deep MCA)
- Left neglect (right deep MCA)
- Combination of everything (proximal MCA)
- Global aphasia (left proximal MCA)
- Left hemineglect (right proximal MCA)
Posterior cerebral artery (PCA)
Supplies:
- Occipital lobe
- Inferior/medial temporal lobe
- Upper brainstem
- Midbrain
- Thalamus
- Contralateral homonymous hemianopia
- Contralateral hemisensory loss
- Visual agnosia and prosopagnosia (not recognising human faces)
- Dyslexia (difficulty reading)
- Agraphia (difficulty writing)
- Anomia (difficulty remembering words or names)
- Thalamic pain (a form of chronic pain)
- Dysesthesias (abnormal sensation)
- Involuntary movements
- Weber's syndrome (oculomotor nerve palsy and contralateral hemiplegia or hemiparesis)
- Cranial nerve III palsy
Superior cerebellar artery (SCA)
Supplies:
- Superior cerebellum
- Dentate nucleus
- Lateral pons
Signs and symptoms:
- Limb ataxia
- Dizziness with nausea/vomiting
- Horizontal nystagmus
- Loss of ipsilateral conjugate gaze
- Contralateral H
- Contralateral Horner's syndrome
- Contralateral loss of pain/temperature sensation
- Loss of touch, position, or vibratory sense
Posterior inferior cerebellar artery (PICA)
Supplies:
- Lateral medulla and inferior cerebellum
- Lateral medullary syndrome (Wallengerg's)
- Ipsilateral or contralateral loss of pain and temperature on the face
- Ipsilateral limb and gait cerebellar ataxia
- Vertigo
- Nystagmus
- Ipsilateral Horner's syndrome
- Dysphagia
- Ipsilateral sensory loss
Anterior inferior cerebellar artery (AICA)
Supplies:
- Lateral caudal pons
- Small areas of the cerebellum
- Ipsilateral horizontal or vertical nystagmus
- Vertigo
- Nausea
- Vomiting
- Ipsilateral facial paralysis
- Ipsilateral loss of conjugate gaze to the side of the lesion
- Ipsilateral deafness and/or tinnitus
- Ipsilateral ataxia
- Ipsilateral loss of sensation over the face
- Contralateral impaired pain and temperature
Basilar artery (BA)
Supplies:
- Ventral pons
- Corticospinal tracts
- Long tracts
- Cranial nuclei
- Reticular activation system
- LOCKED-IN SYNDROME
- Tetraplegia
- Bilateral cranial nerve palsy (spared upward gaze)
- Coma (cognition spared)
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