The cervical ribs are pendant, extending ventrally for a distance subequal to the height of the centrum, as in several other East Asian Cretaceous sauropods.
22.
In many groups, such as lizards and saurischian dinosaurs, the cervical ribs are large; in birds, they are small and completely fused to the vertebrae.
23.
In many other groups, such as lizards and saurischian dinosaurs, the cervical ribs are large; in birds, they are small and completely fused to the vertebrae.
24.
It is believed that the decline in mammoth numbers may have forced inbreeding within the species which in turn has increased the number of mammoths being born with cervical ribs.
25.
Reportedly, he was the first to recognize the importance of the cervical rib in causing symptoms associated with what today is known as a form of thoracic outlet syndrome.
26.
A positive Adson's sign is non-specific for the presence of a cervical rib however, as many individuals without a cervical rib will have a positive test.
27.
A positive Adson's sign is non-specific for the presence of a cervical rib however, as many individuals without a cervical rib will have a positive test.
28.
Cervical ribs have been connected with leukaemia in human children, so it has given scientists new evidence to believe that the mammoth's extinction was attributed to the condition.
29.
It is important to realize that through anatomical variation it is common for the skeleton to have many extra bones ( sutural bones in the skull, cervical ribs, lumbar ribs and even extra lumbar vertebrae ).
30.
Much of the rest of the skeleton is excellently preserved, including the normal vertebral count in " Archaeopteryx ", cervical ribs, gastralia, naturally-contacted ( and not co-ossified ) scapula and coracoid, pelvic girdle, and hind limbs.
