there are two types of pleura: visceral pleura covers the lungs, parietal pleura lines the inner surfaces of the walls of pleural cavity; parietal pleura is sensitive to pain but visceral pleura is not sensitive to pain. pleura, cervical parietal.
How Thoughts Affect our Mood. Human beings are thinking creatures and every moment our minds are working and producing one thought or the other. No one knows how the thoughts are originated but they get their theme from our every day experiences. Thoughts are an integral part of our existence. As discussed in the other blog posts by the author, thoughts create feelings.
Various alterations in corresponding genes affect the levels of serotonin or sensitivity to serotonin and may cause behavioral changes. Changes in serotonin level can affect behavior. The level of serotonin is controlled by multiple mechanisms.Any changes in the genes involved may lead to serious consequences.everal genetic alterations in the gene for tryptophan hydroxylase were reported to be associated with suicidal behavior. This enzyme is involved in biosynthesis of serotonin, and therefore its genetic alterations can easily affect the level of this mediator.