this increase helps compensate for the lower oxygen levels of the newenvironment. Similarly, a light-skinned individual who moves to a hot tropical region will develop increased pigmentation in the skin. In such situations, the resultant form is seldom perfect for the new conditions, but it is ...
Once the food approaches the stomach, a muscular valve (the lower esophageal sphincter) relaxes and lets the food pass into the stomach. This sphincter has the important function of closing the stomach so no food or stomach acid reenters the esophagus (and therefore avoids heartburn or regurgita...
Once the food approaches the stomach, a muscular valve (the lower esophageal sphincter) relaxes and lets the food pass into the stomach. This sphincter has the important function of closing the stomach so no food or stomach acid reenters the esophagus (and therefore avoids heartburn or regurgita...
There you can find organs like the lower pole of the right kidney deep inside the abdomen, part of the right ureter, and the ascending colon or large intestine Because there are not a lot of organ in this region, pain in this part of the abdomen is not as common in comparison to so...
Abdominal quadrants are the four major regions into which the abdomen is divided. These four quadrants are named after their location and are known as:The Right Upper Quadrant, or RUQ The Right Lower Quadrant, or RLQ The Left Upper Quadrant, or LUQ and the Left Lower Quadrant, or LLQEach ...
The heart, for its optimum functioning, follows a cycle. There is a left and right side of the heart which is separated by a thick wall called the septal wall. Both sides have two chambers each, the upper chambers are called atria and the lower, ventricles. The atria are smaller as ...
Mediastinum, the anatomic region located between the lungs that contains all the principal tissues and organs of the chest except the lungs. It extends from the sternum back to the vertebral column and is bounded by the pericardium and the mediastinal pl
(Fig.2B). Meanwhile, significantly increasing trend of α-diversity was also identified in luminal samples along the lower GI tract (jejunum-Ileum-colon) (P < 0.05) (Fig.2B), mainly attributed to the longer transit time in colon. When comparing α-diversity between mucosal and luminal ...
Simulation-based analysis can inform the policy process by predicting the likely effects of alternative policies on a wide variety of outcomes of interest. This paper describes a family of simulations developed by the US Scientific Registry of Transplant Recipients and initial experience in the ...
The goal of the study was to assess the impact of deep inspiration breath hold technique (DIBH), surface-guided radiotherapy (SGRT), and daily kilovoltage cone-beam computed tomography (kV-CBCT) on the dose to organs at risk (OAR) in left-sided breast cancer radiotherapy. Twenty-six conse...