Brain Imaging, Energy Consumption of the Brain in Children - Essay Example

Sleep is always characterized by changes in brain wave activity. In this case, different physiological activities are active during REM sleep while others are less active during NREM sleep. All the processes occur in stages. For instance, in stage 2 when an individual goes to sleep, the brain experiences slow fluctuations of electrical activity that are measured by electrodes that are accompanied by bursts of rapid waves known as sleep spindles. Also, in stage 3 delta waves form and compute with faster waves leading the person into deep sleep.

In which part of the brain has a stroke patient experienced a disruption of blood flow?
The cerebrum is the part of the brain that is affected when a stroke patient experiences a disruption of blood flow. In this case, the cerebrum consists of the left and right hemispheres that require blood flow at all times. In case, there is a clot or plaque that disrupts the flow of blood to the cerebrum, a person might suffer a stroke.

How can brain structures be examined without exposing a patient to radiation?
Brain structures can be examined using brain imaging where practitioners generate computerized images of the brain without exposing the patient to x-ray radiation. In this case, imaging tests called neuroradiological tests are done using computer-assisted brain scans (Shulman 2013). Read More