Definition of Spiracles. Meaning of Spiracles. Synonyms of Spiracles

Here you will find one or more explanations in English for the word Spiracles. Also in the bottom left of the page several parts of wikipedia pages related to the word Spiracles and, of course, Spiracles synonyms and on the right images related to the word Spiracles.

Definition of Spiracles

Spiracle
Spiracle Spir"a*cle, n.[L. spiraculum, fr. spirare to breathe: cf. F. spiracule. See Spirit.] 1. (Anat.) The nostril, or one of the nostrils, of whales, porpoises, and allied animals. 2. (Zo["o]l.) (a) One of the external openings communicating with the air tubes or trache[ae] of insects, myriapods, and arachnids. They are variable in number, and are usually situated on the sides of the thorax and abdomen, a pair to a segment. These openings are usually elliptical, and capable of being closed. See Illust. under Coleoptera. (a) A tubular orifice communicating with the gill cavity of certain ganoid and all elasmobranch fishes. It is the modified first gill cleft. 3. Any small aperture or vent for air or other fluid.

Meaning of Spiracles from wikipedia

- Spiracle or spiraculum may refer to: Spiracle (arthropods), opening in the exoskeletons of some arthropods Spiracle (vertebrates), openings on the surface...
- Spiracles (/ˈspɪrəkəl, ˈspaɪ-/) are openings on the surface of some animals, which usually lead to respiratory systems. The spiracle is a small hole behind...
- paired lateral spiracles similar to those of insects. Scutigeromorph centipedes are an exception, having unpaired, non-closable spiracles at the posterior...
- Spiracles can sometimes also be surrounded by hairs to minimize bulk air movement around the opening, and thus minimize water loss. The spiracles are...
- during non-mating seasons. Spiracles are small openings that allow some fish and amphibians to breathe. Stingray spiracles are openings just behind its...
- adjacent sclerotized parts by membranes. Each segment carries a pair of spiracles. The outer skeleton, the cuticle, is made up of two layers: the epicuticle...
- connected to the surroundings through a pair of spiracles, but in the majority of spiders this pair of spiracles has fused into a single one in the middle,...
- has a pair of legs on each segment. The thorax is also lined with many spiracles on both the mesothorax and metathorax, except for a few aquatic species...
- arrangement of spiracles. In this order, spiracles are arranged in a series down the middle of the centipede's back, whereas spiracles in all other centipedes...
- internal gills vented by spiracles. Depending on the species, there can be two spiracles on both sides of the body, a single spiracle on the underside near...