MCA
ACA
Affected area: Med
frontal and parietal
corpus calossum
ganglia
Superior Division Lenticulo-striate arteries
Inferior Division
(Most common lacunar stroke)
Signs and Sym
Contralateral we
Affected lobe: Lateral frontal Affected area: Posterior Internal > Arm/face)
Affected lobe: Lateral Temporal Contralateral se
lobe + Superior parietal lobe capsule
lobe (Superior temporal gyrus) Abulia - Absenc
The vascular territory covers: The vascular territory covers: or the inability t
The vascular territory covers: decisively
Broca's area All fibers in the posterior limb
Wernicke's area Speech disturba
Primary motor cortex ➡️ of the internal capsule
Auditory cortex Transcortical m
Face and Arm
Optic radiations non-fluent, diffic
Primary somatosensory
➡️ Face and arm speech
Frontal eye field Transcortical m
speaking + com
impairment
Urinary incontin
Voluntary bladd
areas affected
Signs and Symptoms:
Signs and Symptoms: Contralateral homonymous
Contralateral weakness of the hemianopia (Optic radiations)
upper limbs and contralateral Contralateral upper
face (arms>legs) quadrantanopia (Meyer’s
Motor weakness in Lower 1/3 loop)
of the face Dominant hemisphere ->
Contralateral sensory loss Receptive Aphasia
(Arm, face or leg) (Wernicke’s area)
Dominant hemisphere ➡️ Non-Dominant hemisphere ->
Expressive Aphasia, problem Constructional Apraxia
in speech production (difficulty in motor planning
(Affects Broca’s area) despite understanding Signs and Symptoms:
Non-dominant hemisphere ➡️ instructions and having the - Contralateral motor and sensory
Contralateral Hemineglect physical capability) loss - upper and lower limb
- Ataxia - upper and lower limbs