(in vertebrates) the skeletal framework which provides attachment for the forelimbs or pectoral fins, usually consisting of the scapulas and clavicles.
- ‘The pectoral spine moves in the pectoral girdle to create sound.’
- ‘It is not clear how this joint functioned with the pectoral girdle still anchored to the dermal skull.’
- ‘In amphibians the inner ear is mechanically coupled to the pectoral girdle through the operculum.’
- ‘They plainly retained a keeled sternum and a robust pectoral girdle.’
- ‘The shape of the pectoral girdle is typical of that of polycotylids.’
We take a look at several popular, though confusing, punctuation marks.