Patra P, Gunness T K, Robert R, Rogez J M, Heloury Y, Le Hur P A, Leborgne J, Laude M, Barbin J Y
Laboratoire d'Anatomie de la Faculté de Médecine de Nantes, France.
Surg Radiol Anat. 1988;10(2):107-12. doi: 10.1007/BF02307818.
The action of the omohyoid muscle on the hemodynamics of the internal jugular vein is controversial. For some authors, contraction of this muscle, by tightening the cervical fascia, promotes jugular venous return. For others, contraction of this muscle compresses the jugular vein in its cervical path. With this latter point in mind, the hemodynamics of the internal jugular vein have been studied in its cervical path by echography in 10 healthy volunteers. One hundred twenty measurements of the venous surface were made at rest, with the mouth open and during deep inspiration. In the last 2 situations, evidence of a significant increase in the venous surface was found above the omohyoid muscle. These data confirm the role of compression of the vein by the omohyoid muscle, leading to modifications in intracerebral venous hemodynamics, which can be affected in yawning.
肩胛舌骨肌对颈内静脉血流动力学的作用存在争议。一些作者认为，该肌肉收缩通过拉紧颈部筋膜促进颈静脉回流。另一些作者则认为，该肌肉收缩会在颈部路径上压迫颈静脉。基于后一种观点，通过超声检查对10名健康志愿者的颈内静脉颈部路径的血流动力学进行了研究。在静息状态、张口和深吸气时对静脉表面积进行了120次测量。在后两种情况下，发现肩胛舌骨肌上方的静脉表面积有显著增加。这些数据证实了肩胛舌骨肌对静脉的压迫作用，导致脑内静脉血流动力学发生改变，打哈欠时可能会受到影响。
