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What organ's blood supply is affected by a stroke?
the brain
After a stroke how can a doctor tell which hemisphere was affected?
A doctor can determine which hemisphere of the brain was affected by a stroke by observing the physical symptoms of the patient. For example, if the right hemisphere is affected, there may be weakness or paralysis on the left side of the body, and vice versa. Imaging tests such as MRI or CT scans can also help locate the area of the brain where the stroke occurred.
When a ligand is released what prevents all of the cells in the body from being affected?
When a ligand is released, only cells that have the specific receptor for that ligand will be affected. Receptors are proteins on the cell membrane or inside the cell that bind to specific ligands like keys fitting into locks. This specificity ensures that only target cells respond to the signaling molecule, preventing all cells in the body from being affected by the released ligand. Additionally, the concentration of the ligand, the distance it can travel, and the presence of other signaling molecules also play a role in determining which cells are affected.
What is the target tissue that is affected by the somatic tissue?
The target tissue affected by somatic mutations is the body's non-reproductive cells, including those in organs, muscles, and connective tissue. These mutations are not passed on to offspring as they do not affect germ cells.
How does a stroke causes brain damage?
A stroke occurs when blood flow to a part of the brain is interrupted, either due to a blood clot or a burst blood vessel. This lack of oxygen and nutrients can cause brain cells to die, leading to brain damage. The extent of the damage depends on the size and location of the affected area in the brain.
