The insect body is divided into three parts: the head, thorax, and abdomen. The head is specialized for sensory input and food intake; the thorax, which is the anchor point for the legs and wings (if present), is specialized for locomotion; and the abdomen for digestion, respiration, excretion, and reproduction.Read More →

The spleen should be dull to percussion, where the kidney can be resonant due to overlying gas. Traube’s space percussion: the sixth rib superiorly, the midaxillary line laterally, and the left costal margin inferiorly. This area should be dull on expiration. What does splenic dullness mean? If the spleen isRead More →

In most cases, a lump is caused by a hernia. An abdominal hernia is when the abdominal cavity structures push through a weakness in your abdominal wall muscles. Usually, this can be easily corrected with surgery. In rarer cases, the lump may be an undescended testicle, a harmless hematoma, orRead More →