Concentric contractions: A concentric contraction is a type of muscle contraction where the length of the muscles shorten while undergoing tension. For example, when you pick up a curl bar and perform a biceps curl, the length of your biceps muscles shorten.
Blood in Baby's Stool. Babies can sometimes have blood in their stool that is caused by food allergies, a small anal tear or fissure, or even a temporary case of lactose intolerance. It might even be a drop of blood that came from a cracked nipple, which the baby then passed through his system.
Blood in stool as a Symptom. Blood in stool (symptom): Another name for Bloody stool. Â» Introduction: Bloody stool. Â» Causes of Bloody stool. Blood in stool (symptom): Blood appearing in the stool.... more Â». Blood in stool (symptom): Blood in the stool may be a sign of rectal bleeding or gastrointestinal bleeding. Certain conditions may lead to bloody diarrhea. Any ...