Muscle tone. Definition. noun. (1) The muscle in a steady partially contracted state caused by the successive flow of nerve impulses. (2) The amount of tension or resistance to movement in a muscle. Supplement. Muscle tone or tonus helps in maintaining body posture.
Hydronephrosis is the distention of the pelvis and calyces of one or both kidneys, resulting in thinning of the renal tubules because of obstructed urinary flow. When the obstruction is a stone or kink in one of the ureters, only one kidney is damaged.
Abdominal distention: Introduction. Abdominal distention: The sensation and appearance of distention located in the abdomen. See detailed information below for a list of 68 causes of Abdominal distention, Symptom Checker, including diseases and drug side effect causes. Â» Review Causes of Abdominal distention: Causes | Symptom Checker Â».