Wednesday 19 March 2014

The Lungs Lungs Diagram of a Smoker after Smoking Cancer Anatomy And Heart Drawing Images AFter Smoking Wee of a Weed Smoker

The Lungs Biography

(Source google.com)
It has been long established that hostile personality traits are related to cigarette dependency and smoking cessation difficulties. Now UCI researchers have found that in people who have aggressive personalities nicotine triggers significant brain activity in the areas that help control social response, thinking and planning. In turn, non-hostile people showed no brain activity increases at all to nicotine. These findings suggest that some people are born with a predisposition to cigarette addiction and helps explain why quitting for some is practically impossible.
"We call this brain response a 'born to smoke' pattern," said study leader Dr. Steven Potkin, professor of psychiatry and human behavior. "Based on these dramatic brain responses to nicotine, if you have hostile, aggressive personality traits, in all likelihood, you have a predisposition to cigarette addiction without ever having even touched a cigarette."
Study results appeared in the January issue of Cognitive Brain Research. Potkin and Dr. James H. Fallon, professor of anatomy and neurobiology, gave study subjects standard psychiatric personality exams and separated them into two groups - those with high-hostility personality traits, which are marked by anger, aggression and anxiety, and those with low-hostility traits. Both groups included smokers and non-smokers. The groups were given nicotine patches of strengths of 3.5 or 21 milligrams, or placebo, and later subjected to PET scans to see if the nicotine triggered any responses in brain metabolism of glucose energy. While the PET scans showed no metabolic changes in the low-hostility subjects, nicotine induced dramatic metabolic responses in the high-hostility group individuals in the limbic system and the cortical and subcortical sectors of the brain. Among members of the high-hostility group, smokers showed a metabolic reaction only to the more powerful 21 milligram nicotine patch, while non-smokers reacted to both patches The fact that non-smokers in the high-hostility group showed a significant metabolic response to nicotine provides the first biological evidence that people with high-hostility personalities are likely to become dependent on cigarettes because of their brains' strong response to nicotine, said Potkin. "In turn, this might also help explain why other people have no compelling drive to smoke or can quit smoking with relative ease," he added.Potkin and his fellow UCI researchers are continuing their nicotine-PET scan study, looking into the role that gender and other traits may play in cigarette addiction.
David Keator, James Mbogori and Jessica Turner of the Department of Psychiatry and Human Behavior at UCI assisted with the study. It was funded by grants from the National Institutes of Health to the UCI Transdisciplinary Tobacco Research Use Center, which was established to conduct scientific studies of the different social, cultural and biological factors that lead to smoking behavior. To understand the anatomy of the lungs, the passage of air through the nose and mouth to the alveoli must be studied. The progression of air through either the mouth or the nose, travels through the nasopharynx, oropharynx, larynx, and the trachea (windpipe). The air passes down the trachea, which divides into two main bronchi; these branch to the left and right lungs where they progressively subdivide into a system of bronchi and bronchioles until the alveoli are reached. These many alveoli are where the gas exchange of carbon dioxide and oxygen takes place. Breathing is driven by muscular action; in early tetrapods, air was driven into the lungs by the pharyngeal muscles via buccal pumping, which is still found in amphibians. Reptiles, birds and mammals use their musculoskeletal system to support and foster breathing. Medical terms related to the lung often begin with pulmo-, such as in the (adjectival form: pulmonary) or from the Latin pulmonarius ("of the lungs"), or with pneumo- (from Greek πνεύμων "lung").

The Lungs Lungs Diagram of a Smoker after Smoking Cancer Anatomy And Heart Drawing Images AFter Smoking Wee of a Weed Smoker

The Lungs Lungs Diagram of a Smoker after Smoking Cancer Anatomy And Heart Drawing Images AFter Smoking Wee of a Weed Smoker

The Lungs Lungs Diagram of a Smoker after Smoking Cancer Anatomy And Heart Drawing Images AFter Smoking Wee of a Weed Smoker

The Lungs Lungs Diagram of a Smoker after Smoking Cancer Anatomy And Heart Drawing Images AFter Smoking Wee of a Weed Smoker

The Lungs Lungs Diagram of a Smoker after Smoking Cancer Anatomy And Heart Drawing Images AFter Smoking Wee of a Weed Smoker

The Lungs Lungs Diagram of a Smoker after Smoking Cancer Anatomy And Heart Drawing Images AFter Smoking Wee of a Weed Smoker

The Lungs Lungs Diagram of a Smoker after Smoking Cancer Anatomy And Heart Drawing Images AFter Smoking Wee of a Weed Smoker

The Lungs Lungs Diagram of a Smoker after Smoking Cancer Anatomy And Heart Drawing Images AFter Smoking Wee of a Weed Smoker

The Lungs Lungs Diagram of a Smoker after Smoking Cancer Anatomy And Heart Drawing Images AFter Smoking Wee of a Weed Smoker

The Lungs Lungs Diagram of a Smoker after Smoking Cancer Anatomy And Heart Drawing Images AFter Smoking Wee of a Weed Smoker

The Lungs Lungs Diagram of a Smoker after Smoking Cancer Anatomy And Heart Drawing Images AFter Smoking Wee of a Weed Smoker

The Lungs Lungs Diagram of a Smoker after Smoking Cancer Anatomy And Heart Drawing Images AFter Smoking Wee of a Weed Smoker

The Lungs Lungs Diagram of a Smoker after Smoking Cancer Anatomy And Heart Drawing Images AFter Smoking Wee of a Weed Smoker

The Lungs Lungs Diagram of a Smoker after Smoking Cancer Anatomy And Heart Drawing Images AFter Smoking Wee of a Weed Smoker

The Lungs Lungs Diagram of a Smoker after Smoking Cancer Anatomy And Heart Drawing Images AFter Smoking Wee of a Weed Smoker

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