What is stroke?
When a blood clot blocks a blood vessel (artery) and interrupts blood flow to the brain region supplied by that artery, or when a blood vessel breaks, and bleeding occurs into an area of the brain.
If the blood flow is interrupted, oxygen delivery stops and brain cell die.
The clinical manifestations are depending upon which cerebral artery is affected
middle cerebral artery: the largest branch of the internal carotid
The artery supplies a portion of the frontal lobe and the lateral surface of the temporal and parietal lobes
The cerebral artery which supplies the frontal lobe and lateral surface of the temporal and parietal lobes with blood becomes blocked
The first manifestation: sudden weakness
a motor cortex arear
Mr mark present with right side facial droop
The motor and sensory cortex on the left side is controlling and interpreting sensations for the opposite, the right side of the body and vice area.
The second manifestation: inconceivable words
MCA trigger the reduce in ability that the downstream parts of the brain perform, at least temporary.
MCA supply to two arear of the brain, the Broca’s arear on the outside of the brain and the other one is Wernicke’s area. A point that needs to be emphasised is the Broca and Wernicke’s arear is vital in determining the speech, how people speech and ability to understand the conversation.
Right visual field
Is common after stroke and results in visual field loss on the same side of both eyes. It is triggerd by any lesion along the retro chiasmal visual pathway
“The left half of the brain controls most functions on the right side of the body, while the right half of the brain controls most functions on the left side”
has covered the clinical manifestation of Mr mark who has been diagnosed with a
cute exacerbation of stroke and the pathology causing mr mark’s clinical manifestation.
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