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.
Expert: Kerry replied 10 years ago. Hydrosalpinx, derived from Greek, literally means âwater tubeâ. The fallopian tube is distended with fluid to a variable degree. If both tubes are distended, they are called hydrosalpinges. It is a common type of tubal problem that causes infertility. Nearly half of all couples who suffer from infertility have a female-related cause.