capitulum

capitulum
1. [NA] A small head or rounded articular extremity of a bone. SYN: capitellum (1). SEE ALSO: caput. 2. The bloodsucking, probing, sensing, and holdfast mouthparts of a tick, including the basal supporting structure; relative size and shape of mouthparts forming the c. are characteristic for the genera of hard ticks. [L. dim. of caput, head]
- c. humeri [TA] SYN: c. of humerus.
- c. of humerus [TA] the small rounded eminence on the lateral half of the distal end of the humerus for articulation with the radius. SYN: c. humeri [TA], capitellum (2), little head of humerus.

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ca·pit·u·lum -ə-ləm n, pl -la -lə a rounded protuberance of an anatomical part: as
a) the knob at the end of a bone or cartilage
b) the beak of a tick composed of the mouthparts and palpi

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n.
the small rounded end of a bone that articulates with another bone. For example, the capitulum humeri (or capitellum) is the round prominence at the elbow end of the humerus that articulates with the radius.

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ca·pit·u·lum (kə-pitґu-ləm) pl. capitґula [L. dim. of caput] 1. a little head, or a small eminence on a bone by which it articulates with another bone. 2. a bulbous, knoblike, or enlarged terminal protuberance of a body or part, such as: (a) the movable head zone (gnathosoma) bearing the mouth parts of a tick or mite; (b) the end of an insect's antennae; or (c) the anterior end of the axostyle of certain zooflagellates, containing the nucleus of the organism.

Medical dictionary. 2011.

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  • Capitulum — Ca*pit u*lum (k[.a]*p[i^]t [ u]*l[u^]m), n.; pl. {Capitula} (k[.a]*p[i^]t [ u]*l[.a]). [L., a small head.] 1. A thick head of flowers on a very short axis, as a clover top, or a dandelion; a composite flower. A capitulum may be either globular or …   The Collaborative International Dictionary of English

  • capitulum — término latino para cabeza ósea o eminencia articular Diccionario ilustrado de Términos Médicos.. Alvaro Galiano. 2010. capitulum Eminencia pequeña y redondeada de un hueso que se artic …   Diccionario médico

  • Capitulum — (lat. Köpfchen) kann je nach Zusammenhang verschiedene Bedeutungen haben: In der Botanik eine Blütenstandsform, das Köpfchen In der Anatomie Capitulum humeri, einen Teil des Oberarmknochens In der Zoologie eine Alternativbezeichnung für das… …   Deutsch Wikipedia

  • Capitulum —   [lateinisch »Köpfchen«] das, s/...la, Anatomie: Gelenkköpfchen, z. B. Capitulum humeri, der mit der Speiche in gelenkiger Verbindung stehende, kugelige seitliche Abschnitt des Oberarmknochens …   Universal-Lexikon

  • Capitŭlum [1] — Capitŭlum (a. Geogr.), Stadt der Herniker in Latium, in den Bergen oberhalb Präneste, jetzt Caspoli od. Paliano …   Pierer's Universal-Lexikon

  • Capitŭlum [2] — Capitŭlum, 1) (Anat.), so v.w. Köpfchen; 2) (Bot.), Blüthenkopf, Köpfchen, ein gipfelständiger Blüthenstand mit verkürzter Achse u. ungestielten od. kurz gestielten Blüthen, wie Kleearten, C. phyteuma, C. jasione. Daher Capituliformis, kopfförmig …   Pierer's Universal-Lexikon

  • Capitŭlum — (lat.), »kleiner Kopf«, Kapitel; das Blütenköpfchen (s. Blütenstand, S. 93) …   Meyers Großes Konversations-Lexikon

  • capitulum — c.1750, from L., lit. little head, dim. of caput head (see HEAD (Cf. head)) …   Etymology dictionary

  • capitulum — [kə pich′yoo ləm, kəpich′ə ləm] n. pl. capitula [kə pich′ələ] [ModL < L, dim. of caput, HEAD] 1. Anat. Zool. a knoblike part, as at the end of a bone in a joint 2. Bot. HEAD (n. 17a) …   English World dictionary

  • CAPITULUM — I. CAPITULUM Italiae urbs prope Bovillas, et Calatias, Cluverio oppidul. versus Fucinum lacum, ubi nunc forsam vicus Luco. II. CAPITULUM vox Recentioribus multo et vario in usu. Apud Gregorium M. l. 1. Ep. 47. Sacra Imperaha cucurrerunt, quibus… …   Hofmann J. Lexicon universale

  • Capitulum — The term Capitulum can refer to several things:*In botany, a type of flower head where the bracts are located under the basis, such as a Daisy s *In anatomy, the Capitulum of the humerus *The Latin word for a Chapter *In entomology, a structure… …   Wikipedia

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