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.
Hydronephrosis and Ureteropelvic Junction Obstruction. Treato found 18 discussions about Ureteropelvic Junction Obstruction and Hydronephrosis on the web. ... Hydronephrosis is distend and dilation of the renal pelvis calyx (kidney), usually caused by obstruction of the free flow of urmne fr...