放射状肋骨頭靭帯とは
「船戸和弥の解剖学」では以下のように解説している。
「肋骨頭関節の関節包は薄いがあまり余裕がなく、下面の線維がいくらか長いだけである。前面は厚く、肋骨頭から放射して上下の椎体と椎間円板に向かう線維は放射状肋骨頭靱帯をつくる。」
以下は「Wikipedia」の解説文となる。
「The radiate ligament connects the anterior part of the head of each rib with the side of the bodies of two vertebræ, and the intervertebral fibrocartilage between them.
It consists of three flat fasciculi, which are attached to the anterior part of the head of the rib, just beyond the articular surface.
- The superior fasciculus ascends and is connected with the body of the vertebra above.
- The inferior one descends to the body of the vertebra below.
- The middle one, the smallest and least distinct, is horizontal and is attached to the intervertebral fibrocartilage.
The radiate ligament is in relation, in front, with the thoracic ganglia of the sympathetic trunk, the pleura, and, on the right side, with the azygos vein; behind, with the interarticular ligament and synovial membranes.
In the case of the first rib, this ligament is not divided into three fasciculi, but its fibers are attached to the body of the last cervical vertebra, as well as to that of the first thoracic.
In the articulations of the heads of the tenth, eleventh, and twelfth ribs, each of which articulates with a single vertebra, the triradiate arrangement does not exist; but the fibers of the ligament in each case are connected to the vertebra above, as well as to that with which the rib articulates.」
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