pectoral girdle

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pectoral girdle

A bony or cartilaginous structure in vertebrates, attached to and supporting the forelimbs or anterior fins. Also called pectoral arch.

pectoral girdle


pectoral arch

(Anatomy) a skeletal support to which the front or upper limbs of a vertebrate are attached

pec′toral gir′dle

the compound bony or cartilaginous arch supporting the forelimbs or analogous parts in vertebrates.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.pectoral girdle - a skeletal support to which the forelimbs of vertebrates are attachedpectoral girdle - a skeletal support to which the forelimbs of vertebrates are attached
girdle - an encircling or ringlike structure
pectoral arch, shoulder girdle - the bony arch formed by the collarbones and shoulder blades in humans
appendicular skeleton - the part of the skeleton that includes the pectoral girdle and the pelvic girdle and the upper and lower limbs
References in periodicals archive ?
It is a major component of the pectoral girdle playing an important role in the varied and complex movements of the upper limb.
Radiographic findings show asymmetry on the position of the pectoral girdle. The furcula (clavicles) is fused to the most cranial and ventral aspect of the sternum.
Head and pectoral girdle spine formation begins during the preflexion stage between 5.2-6.0 mm, with the posterior preopercular, parietal, pterotic, and postocular spines.
the number of scales along the line in the position that would normally be occupied by a typical lateral line scale." A count from the caudal base along the lower pored lateral line segment, continuing forward on unpored scales ends at a narrow fleshy unscaled area just behind the pectoral base, not reaching the pectoral girdle itself; counting posteriorly from the shoulder girdle above the pectoral fin base on the upper, shorter anterior pored segment results in a complete count to the caudal base as defined, but bypasses the majority of the pored scales in the lower lateral line.
The time of ossification in pectoral girdle and sternum: Scapula, Clavicle, Coracoid, Humerus:
Stridulation sounds in channel catfish are produced during pectoral spine abduction (forward fin sweeps), when ridges on the spine's base rub against a bony part of the pectoral girdle called the cleithrum.
tridactylum capture, we measured snout-vent length (SVL), total length (TL), and pectoral girdle circumference (PGC) using a measuring tape ([+ or -] 0.5 cm).
Pectoral girdle with a sharp dorsal process on cleithrum, reaching one third of length of supracleithrum.
She said that in modern lungfish, the longer mouth cavity enables them to hold a bubble of air in their mouths, while the cranial ribs anchor the pectoral girdle during air gulping.
The functional morphology of the pectoral girdle and the other muscular and skeletal elements involved in lifting and locomotion in this species is a rich area for study and may offer phylogenetic insights as well.
The pelvic girdle was firmly attached to the vertebral column, and the pectoral girdle had smaller extrascapular dermal bone components (with the exception of the clavicle, which was larger).
Puffers possess significant modifications of the pectoral girdle and head that function in the pumping mechanism (Wainwright et al.