seta

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seta

[′sed·ə]
(biology)
A slender, usually rigid bristle or hair. Also known as chaeta.
In mosses and liverworts, the stalk of the sporophyte supporting the capsule.
References in periodicals archive ?
Setae and setulae on thorax black; 1 h, 2 dc, 1 prsc, 2 npl, 1 prs, 1 pos, 1 sa, 1 ia, 1 pa, 1 kepsts (setulae at forward position); scutellum 1.
Somites 3-5 with 1 pair of dorsolateral processes directed ventrally, somites 2-5 with 1 pair of posterodorsal setae, also with posterolateral processes, these especially well-developed in somites 3-4.
DISCUSSION: Randallophorus keys roughly to Sthenaridea in Schuh (1984, as Paramixia; 1991) and Schuh and Schwartz (1988) based on the shared lack of scalelike setal patches and bands on the hemelytra, the simple slender antennal segment II, the scattered scalelike pleural setae, and the simple, tubelike endosoma lacking an apparent gonopore.
Knowing that setae are composed of keratin and keratin is softened by high humidity, Autumn wondered whether having softer setae could improve the reptiles' contact with surfaces and increase their van der Waals adhesion.
Using an atomic-force microscope, Dhinojwala and his colleagues measured just how powerfully adhesive their synthetic invention was, compared with gecko setae.
Our mathematical models suggest that self-cleaning in gecko setae is a result of geometry not chemistry," said Autumn.
1, A and C) Longer than the whole body length; flagellum segmented throughout its length; outer-distal corner terminated with an acute spine and a minute seta; inner-distal margin 5-segmented with 1, 1, 1, 1, 2 setae; inner margin fringed with 28-29 setae.
Setae and setulae on thorax yellow; npl 1+2, a npl as long as p npl; a pa shorter than p pa; 1 dc hair-like, as long as a pa.
Diagnosis: body size 481-531 x 298-348; rostrum rounded; rudimentary translamellar line; prolamellar lines absent; prodorsal setae setiform, barbed; sensilli spindle-form, ciliate; exobothridial setae short; one pair of notogastral setaep1 present; sacculi Sa, S1 with elongate openings, S2, S3 with rounded openings; ventral setae setiform, slightly barbed, and with little difference in length; leg claws serrate on dorsal side.
KEY WORDS: antennal setae, antennular setae, nonaesthetasc setae, social environment, Lysmata, peppermint shrimp, cleaner shrimp