capitellum

(redirected from capitella)
Also found in: Dictionary, Encyclopedia.

ca·pit·u·lum

, pl.

ca·pit·u·la

(kă-pit'yū-lŭm, -lă),
1. A small head or rounded articular extremity of a bone.
See also: caput. Synonym(s): capitellum (1)
2. The bloodsucking, probing, sensing, and holdfast mouthparts of a tick, including the basal supporting structure; relative size and shape of mouthparts forming the capitulum are characteristic for the genera of hard ticks.
[L. dim. of caput, head]

capitellum

/cap·i·tel·lum/ (kap″ĭ-tel´um) capitulum.

capitellum

(kăp′ĭ-tĕl′əm)
n. pl. capi·tella (-tĕl′ə) Anatomy
The rounded protuberance at the lower end of the humerus that articulates with the radius.

capitellum

(1) Head; capitulum. 
(2) Capitulum of humerus; capitulum humeri [NA6].

ca·pit·u·lum

, pl. capitula (kă-pit'yū-lŭm, -lă)
1. [TA] A small head or rounded articular extremity of a bone.
Synonym(s): capitellum (1) .
2. The bloodsucking, probing, sensing, and holdfast mouthparts of a tick, including the basal supporting structure; relative size and shape of mouthparts forming the capitulum are characteristic for the genera of hard ticks.
See also: caput
[L. dim. of caput, head]

ca·pit·u·lum of hu·mer·us

(kă-pit'yū-lŭm hyū'mĕr-ŭs) [TA]
The small rounded eminence on the lateral half of the distal end of the humerus for articulation with the radius.
Synonym(s): capitellum (2) .

capitellum

a rounded bone articulation. See CAPITULUM (1).
References in periodicals archive ?
Ahora bien, el alto numero de organismos pertenecientes a esta especie nos indica algo, segun Reish, 1972 (citado de Salazar, 1991) las areas enriquecidas con materia organica son densamente pobladas por Capitella capitata y este puede identificar la acumulacion organica producida por el drenaje.
Species 1995 1998 AMPHARETIDAE Ampharete labrops Harman, 1961 x Ampharete sp x Amphicteis acutifrons Grube, 1850 x Amphicteis sp Grube, 1850 x CAPITELLIDAE Capitella capitata Fabricius, 1780 x x Mediomastus californiensis Hartman, 1944 x x Mediomastus sp x x Notomastus magnus Hartman, 1947 x Notomastus tennis Moore, 1909 x x Notomastus sp x CIRRATULIDAE Aphelochaeta marioni Saint-Joseph, 1894 x Aphelochaeta sp x Cirriformia spirabranchia Moore, 1904 x x Monticellina tesselata Harman, 1960 x Protocirrineris socialis Blake, 1996 x Protocirrineris sp x COSSURIDAE Cossura candida Hartman, 1955 x x Cossura sp A x x DORVILLEIDAE Dorvillea sp x EUNICIDAE Lysidice ninetta Verril, 1900 x Marphisa disjuncta Harman, 1961 x M.
Stable isotope study of sedimentary carbon utilization by Capitella spp.
Hydrodynamic enhancement of larval settlement in the bivalve Mulinia lateralis (Say) and the polychete Capitella sp.
Capitella worms have long been tagged as pollution indicators; they hang out near pulp mills, for example, and any place abundant in decaying organic matter, upon which they feed.
Detection of juvenile hormone-active compounds by larvae of the marine annelid Capitella sp.
Six species described as opportunistic were located in the south zone, including Capitella capitata, Cossura sp, Dorvillea annulata, Armandia brevis, Polydora cirrosa, and Notomastus tenuis.
prolifera, Hull (1987) showed the bivalve, Macoma balthica, and the polychaetes Nereis diversicolor and Capitella capitata were more abundant in sediments in algae-covered plots, whereas the polychaete Pygospic elegans was less abundant and the abundances of some species were not affected.
Effect of food quantity on growth and reproductive characteristics of Capitella sp.
The only species other than Gemma to appear in numbers greater than one individual per sample were the snail Ilyanassa obsoleta and the polychaetes Spiochaetopterus oculatus, Capitella capitata, Streblospio benedicti, Aricidea jeffreysii, Syllidae sp.
We studied gene expression patterns in precompetent and competent larvae of the salt-marshdwelling polychaete worm Capitella teleta (Blake, Grassle & Eckelbarger, 2009)--a species in which precompetent larvae are unusually easy to distinguish from competent larvae--to determine differences in gene expression associated with the onset of metamorphic competence.
All 4 of these compounds had juvenile hormone activity, inducing metamorphosis in larvae of the annelid Capitella (Biggers & Laufer 1996, Biggers & Laufer 1999, Biggers & Laufer 2004).