Here are some possibilities and clarifications:
* Scalene Muscles: You might be thinking of the scalene muscles (anterior, middle, and posterior scalene), which are located in the neck. These muscles play a role in breathing and neck movement. They are located between the first and second ribs and the transverse processes of the cervical vertebrae.
* Fissures in the Lung: The term "fissure" is typically used to describe the grooves or divisions in the lung. The lungs have fissures that separate the lobes. The right lung has an oblique fissure and a horizontal fissure, while the left lung has an oblique fissure.
* Other Potential Misspellings: It's possible you meant a different word entirely. Double-check your spelling or provide more context if you can remember where you heard the term.
If you can provide more information about the context in which you encountered "scalene fissure," I may be able to provide a more accurate answer.
