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.
oliguria (ÅËÂ·liÂ·gÅÅËÂ·rÄÂ·) , n a decrease in the excretion of urine from the body due to dehydration, an imbalance in electrolytes or body fluids, the presence of renal lesions, the obstruction of the urinary tract, or other causes. Also called. oliguresis.