Triangles Flashcards
Borders of Suboccipital Triangle
Rectus Capitis Posterior Major, Obliquus Capitis Inferior, and Obliquus Capitis Superior
Auscillatory Triangle Borders
Levator scapulae, rhomboids, and latissimus dorsi
Contents of Suboccipital Triangle
Vertebral Artery and Suboccipital Nerve (C1)
Floor of Suboccipital Triangle
Posterior arch of C1 and posterior atlanto-occipital membrane
Roof of Suboccipital Triangle
Semispinalis capitis
Borders of Posterior Cervical Triangle
Posterior border of the sternocleidomastoid, medial clavicle, and anterior border of the trapezius
Contents of Posterior Cervical Triangle
Spinal accessory nerve (CN XI), roots of brachial plexus, phrenic nerve (C3,C4,C5), lesser occipital nerve (C2,C3), greater auricular nerve (C2,C3), transverse cervical nerve (C2,C3), supraclavicular nerve (C3,C4), and dorsal scapular nerve (C5)
Floor of Posterior Cervical Triangle
Splenius capitis, levator scapula, omohyoid, and scalenes
Roof of Posterior Cervical Triangle
Investing layer of the deep cervical fascia
Apex of the Posterior Cervical Triangle
Where the SCM and trapezius meet on the superior nuchal line of the occipital bone