"Compared to a typical rib, the first rib is short and thick and it has a single articular facet for the costovertebral joint. It is flattened from top to bottom. The first rib has a head, neck and shaft but lacks a discrete angle. The shaft is indented laterally, the groove for the subclavian artery, which contains the lowest brachial plexus trunk as well as the subclavian artery. Anterior to the scalene tubercle is another groove for the subclavian vein. There is no costal groove on its inferior surface. It has two tubercles:"
"Compared to a typical rib, the first rib is short and thick and it has a single articular facet for the costovertebral joint. It is flattened from top to bottom. The first rib has a head, neck and shaft but lacks a discrete angle. The shaft is indented laterally, the groove for the subclavian artery, which contains the lowest brachial plexus trunk as well as the subclavian artery. Anterior to the scalene tubercle is another groove for the subclavian vein. There is no costal groove on its inferior surface. It has two tubercles:"
"transverse tubercle: posterior and lateral to the neck; bears an articular facet for the transverse process of T1"
"transverse tubercle: posterior and lateral to the neck; bears an articular facet for the transverse process of T1"
"scalene tubercle: anteriorly between the grooves for the subclavian artery and vein; anterior scalene muscle inserts hereit is also known as the Lisfranc tubercle, described by Lisfranc in 1815 7"
"scalene tubercle: anteriorly between the grooves for the subclavian artery and vein; anterior scalene muscle inserts hereit is also known as the Lisfranc tubercle, described by Lisfranc in 1815 7"
"Pancoast tumour (this may also affect other superior ribs)"
Expected headings
"Osteology"
"Arterial supply"
"Venous drainage"
"Innervation"
"Ossification"
"Compared to a typical rib, the first rib is short and thick and it has a single articular facet for the costovertebral joint. It is flattened from top to bottom. The first rib has a head, neck and shaft but lacks a discrete angle. The shaft is indented laterally, the groove for the subclavian artery, which contains the lowest brachial plexus trunk as well as the subclavian artery. Anterior to the scalene tubercle is another groove for the subclavian vein. There is no costal groove on its inferior surface. It has two tubercles:"
"lateral: axillary artery and vein, divisions and cords of the brachial plexus"
"Compared to a typical rib, the first rib is short and thick and it has a single articular facet for the costovertebral joint. It is flattened from top to bottom. The first rib has a head, neck and shaft but lacks a discrete angle. The shaft is indented laterally, the groove for the subclavian artery, which contains the lowest brachial plexus trunk as well as the subclavian artery. Anterior to the scalene tubercle is another groove for the subclavian vein. There is no costal groove on its inferior surface. It has two tubercles:"
"transverse tubercle: posterior and lateral to the neck; bears an articular facet for the transverse process of T1"
"scalene tubercle: anteriorly between the grooves for the subclavian artery and vein; anterior scalene muscle inserts hereit is also known as the Lisfranc tubercle, described by Lisfranc in 1815 7"