System Glossary
 Glossary Search for pectoral girdle (Search Options)

Definition of Term

pectoral girdle
(English) The bony or cartilaginous skeletal arch supporting the pectoral fins. Usually attached to the posterior part of the skull; the "shoulder" girdle. Composed of the following basic elements (some of which may be lost): coracoid, scapula, pterygials, postcleithrum, cleithrum (main bone), supracleithrum and posttemporal. The "primary" pectoral girdle includes actinosts, scapula, coracoid, and sometimes mesocoracoid cartilage or endochondral bones and supports the fins directly. The "secondary" (and more primitive) pectoral girdle encloses the dermal post-temporal, supracleithrum, cleithrum, and two postcleithra, which are membrane bones and is only indirectly related to the fins. (See also: pectoral fins, cartilage, pelvic girdle)
ceinture scapulaire
(French) Arc squelettique osseux ou cartilagineux qui supporte les nageoires pectorales. (See also: pectoral fins, cartilage, pelvic girdle)
cintura braquial
(Portuguese) Arco esquelético ósseo ou cartilaginoso que dá suporte às barbatanas peitorais. (See also: pectoral fins, cartilage, pelvic girdle)

Other Search Engines

European Environment Agency Glossary of the European Environmental Agency
Wikipedia The Free Encyclopedia
Encyclopedia Britannica Highly authoritative source
EPA Terms Glossary of the U.S. Environmental Protection Agency
Google Search The largest Internet Search Engine
Google Image Search for Images related to the term
eENVplus Thesaurus Thesaurus gathering glossaries for biodiversity, environment and biogeography
A-Z Biodiversity Terms Glossary providing definitions of terms, areas and acronyms related to biodiversity, commonly used, internationally recognized where possible, well referenced, and derived from legitimate sources
Glossary Index: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Back to Search
Back to Top