Henle's loop


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Related to Henle's loop: glomerulus

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.

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
References in periodicals archive ?
The water channel AQP1 is the predominant pathway by which water is reabsorbed from the descending thin limb of Henle's loop in the process of urine concentration (Chou et al., 1999).
Solute and water flows in thin limbs of Henle's loop in the hamster kidney.
Transepithelial water and urea permeabilities of isolated perfused Munich-Wistar rat inner medullary thin limbs of Henle's loop. Am.
An in vivo study of the concentrating process in the descending limb of Henle's loop. Kidney Int.