A patient is admitted to the rehabilitation unit five days after having a stroke. the nurse assesses his muscle strength and determines that he has right-sided weakness. based on this assessment data, what part of the brain was injured?
There was damage to localized areas of the primary motor cortex in the left cerebral hemisphere.
Difussion occurs from a high concentrated region to a low concentrated region. The velocity of diffussion is proportional to the differential of concentrations. In the lung arrives blood with low levels of oxygen while the long is rich with fresh oxygen so the oxygen flows from the lung tissues to the blood.
The other tissues consume oxygen continually them they get poor in oxygen and so the oxygen that is in the blood diffuses to the tissue that is poor in oxygen.