spiral (redirected from spiralled downward)

spiral /spi·ral/ (spi´ral)

1. helical; winding like the thread of a screw.

2. helix; a winding structure.

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Curschmann's spirals  coiled mucinous fibrils sometimes found in the sputum in bronchial asthma.

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spi·ral (sprl)

adj.

Coiling or developing around an axis in a constantly changing series of planes; helical.

n.

A structure in the shape of a coil.

v.

To take the form or course of a spiral.

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spiral [spi´ral]

1. winding like the thread of a screw; called also helical.

2. a winding structure; see also coil and helix.

Curschmann's s's coiled fibrils of mucin sometimes found in the sputum of patients with asthma. See also Laënnec's pearls.

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spiral

1. winding like the thread of a screw.

2. a structure curving around a central point or axis.

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Curschmann's s's

see curschmann's spirals.

spiral organ of Corti

see organ of Corti.

spiral penile deviation

a defect in bulls. See corkscrew penis.

spiral septum

the arterial partition between aorta and pulmonary trunk, formed by the fusion of the truncal, bulbar and aorticopulmonary septa of the great vessels attached to the embryonic heart.

spiral worm

Dispharynx nasuta. See synhimantusspiralis.