The Actual Definition of Muscle Tone. Muscle tone, also known as muscle tonus or residual muscle tension, is an unconscious low level contraction of your muscles while they are at rest. Essentially, muscle tone is what makes your muscles still feel somewhat firm while you are resting and not intentionally tensing them.
Everyone experiences abdominal pain from time to time. Other terms used to describe abdominal pain are stomachache, tummy ache, gut ache and bellyache. Abdominal pain can be mild or severe. It may be continuous or come and go. Abdominal pain can be short-lived (acute) or occur over weeks and months (chronic).
Abdominal pain is pain that originates between the chest and the pelvis. Abdominal pain can be cramp-like, achy, dull, or sharp. It's often called stomachache. Burping, or belching, is the act of expelling gas from the stomach through the mouth. It usually occurs after the stomach has expanded due to too much swallowed air. Burping releases the air. Swallowing air into the stomach can cause a bloated feeling, a swollen abdomen, and stomachache, accompanied by burping.