<prompt> All of the following muscles forms the boundary of the suboccipital triangle found in the suboccipital region of the neck, EXCEPT:Obliquus capitis superior muscleObliquus capitis inferior muscleRectus capitis posterior major muscleRectus capitis posterior minor muscle  <response>: The suboccipital triangle is bounded by rectus capitis posterior major and the obliquus capitis superior and inferior muscles. The floor of this triangle is formed by the posterior occipitoatlantal membrane and the posterior arch of the C1 veebrae.Contents of the triangle are:Veebral aerySuboccipital nerveGreater occipital nerveRef: Moon D.A., Foreman K.B., Albeine K.H. 2011. Chapter 1. Back. 