1. Explain what happens to the brain when a stroke occurs.
1.) When the stroke occurs, the cerebrum of the brain is very damaged. The Wernicke's area, which is the central language area, causes difficulty speaking understandably and comprehending speech, the confusion between left and right, difficulty reading, writing, naming objects, and calculating. The Broca's area, which is involved in speech, causes difficulty speaking, and sometimes writing. The parietal lobe causes the loss of coordination of the right arm and leg, while the facial and limb areas of the motor cortex on the left side of the brain, effects the paralysis of the right arm and leg, plus the right side of the face. Finally, the facial and arm areas of the sensory cortex shows the absence of sensation in the right arm and the right side of the face Optic radiation loss of the right half of the visual field of both eyes.
2. Briefly explain the differences between the three different types of strokes.
2.) The three types of stroke, ischemic, hemorrhagic, and transient ischemic, all have different warning signs and symptoms, that a\occur in different areas of the brain, with various outcomes.
The Ischemic stroke, is usually caused by blood clot that lodges in an artery and blocks the flow of blood to a prat of the brain, which show high blood pressure. This is usually shown through loss of strength and sensation on one side of the body, problems with speech and language or changes in vision or balance. The Hemorrhagic Stroke, occurs when a blood vessel ruptures within the brain. There are two types of stroke due to ruptured blood vessel; sub-arachnoid hemorrhage due to ruptured aneurysms, and intra-cerebral hemorrhage due to ruptured blood vessels. As the symptoms occur suddenly, it tends to appear at younger ages. It shows very severe headache, nausea and vomiting, and partial or total loss of consciousness. Transient Ischemic stroke is a mini-stroke that occurs when a blood clot blocks an artery for a short time. This is a short-term stroke, but do not underestimate them.
3. Identify some of the most common risk factors - in other words, who is most likely to have a stroke?
3.)
Controllable | Uncontrollable |
High blood pressure | Family History |
Atrial Fibrillation (irregular heart beat) |
African American, Hispanic, or Asian |
High Cholesterol | Age |
Diabetes | Gender |
Tobacco Use/Smoking | History of Previous strokes or blocked arteries leading to the brain |
Alcohol Use | |
Overweight |
4. What disabilities can result from a stroke?
4.) Disabilities of stroke include, paralysis, cognitive deficits, speech problems, emotional difficulties, daily living problems, and pain.
5. What is brain plasticity and what does it mean in terms of recovering from a stroke?
5.) Brain plasticity, also referred to neuroplasticity, are changes in neural pathways and synapses which are due to changes in behavior, environment and neural process, as well as changes changes resulting from bodily responses. Brain plasticity in terms of recovering from a stroke shows various ways. Plasticity allows the brain's ability to repair and reorganize cells. By sprouting new synaptic connections, it creates new pathways to in-effected parts of the brain Also exercising your brain. And brain plasticity shows why intensive therapy is such a critical element of stroke recovery.
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