Henle's loop

(redirected from Henle's loops)
Also found in: Dictionary, Encyclopedia.

loop

 [lo̳p]
a turn or sharp curve in a cordlike structure.
capillary l's minute endothelial tubes that carry blood in the papillae of the skin.
closed loop a system in which the input to one or more of the subsystems is affected by its own output.
Henle's loop the U-shaped part of the nephron extending from the proximal to the distal convoluted tubule.
ileal loop ileal conduit.
Lippes loop a form of intrauterine contraceptive device.
open loop a system in which an input alters the output, but the output has no effect on the input.

Henle's loop

loop

(loop)
A curve or bend in a cord or cordlike structure, forming roughly an oval.

capillary loops

Minute blood vessels in the papillae of the dermis.

cervical loop

The part of an enamel organ in which the inner enamel epithelium is continuous with the outer enamel epithelium. This establishes the limit of enamel formation and therefore represents the site of the cementoenamel junction. The cells of the cervical loop become Hertwig's epithelial root sheath, induce dentinogenesis, and determine the number, size, and shape of the tooth roots.

closed loop

1. A biological system in which a substance produced affects the output of the substance by a feedback mechanism.
2. In the learning of motor skills, the process of using sensory feedback to modify fine motor control or skilled movements.

flow-volume loop

A graphic record of lung function in which the amount of gas inhaled and exhaled is recorded on the horizontal axis and the rate at which the gas moves on the vertical axis. It is used to detect abnormalities in pulmonary function such as those accompanying restrictive or obstructive lung disease.

Henle's loop

See: Henle, Friedrich G.J.

Lippes loop

See: Lippes loop

loop

a turn or sharp curve in a cordlike structure.

capillary l's
minute endothelial tubes that carry blood, as in the papillae of the skin.
closed loop
a system in which the input to one or more of the subsystems is affected by its own output.
diuretic loop
loop of Henle diuretic.
Henle's loop
see henle's loop.
intestinal loop
in most species the small intestine is arranged in a series of indefinite open loops. In ducks and geese the loops are closed, finite structures, five to eight in number, and are located more or less in fixed positions. The supraduodenal loop is one of them.
open loop
a system in which an input alters the output, but the output has no effect on the input.