Scalene tubercle
Encyclopedia
The scalene tubercle is a small projection that runs along the medial border of the first rib
between two grooves, which travel anteriorly for the subclavian vein and posteriorly for the subclavian artery. It projects outward medially and is the site of insertion for scalenus anterior
.
First rib
The first rib is the most curved and usually the shortest of all the ribs; it is broad and flat, its surfaces looking upward and downward, and its borders inward and outward....
between two grooves, which travel anteriorly for the subclavian vein and posteriorly for the subclavian artery. It projects outward medially and is the site of insertion for scalenus anterior
Scalenus anterior
The Scalenus anterior , also known as anterior scalene muscle, lies deeply at the side of the neck, behind the Sternocleidomastoideus.-Anatomy:...
.