See Also: Hasner(medicine)
protract(1)(dictionary)
protract(2)(dictionary)
protract(medicine)
Hasner's fold(medicine)
Hasner's valve(medicine)
Herbal medicine (botanical medicine, herbology, phytomedicine)(health)
Medicine Lodge Memorial Hospital- Medicine Lodge(health)
Orthomolecular medicine (orthomolecular nutritional medicine, orthomolecular therapy)(health)
Medicine(medicine)

Hasner's valve (medicine) and protract (medicine)


Hasner's valve (medicine)


Hasner's valve -->
lacrimal fold


A fold of mucous membrane guarding the lower opening of the nasolacrimal duct.

Synonym: plica lacrimalis, Bianchi's valve, Hasner's fold, Hasner's valve, Huschke's valve, Rosenmuller's valve.


protract (medicine)


protract


1. To draw out or lengthen in time or (rarely) in space; to continue; to prolong; as, to protract an argument; to protract a war.

2. To put off to a distant time; to delay; to defer; as, to protract a decision or duty.

3. To draw to a scale; to lay down the lines and angles of, with scale and protractor; to plot.

4. <zoology> To extend; to protrude; as, the cat can protract its claws; opposed to retract.

Origin: L. Protractus, p. P. Of protrahere to forth, protract; pro forward + trahere to draw. See Portrait, Portray.

Source: Websters Dictionary