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Suboccipital Triangle Anatomy


Suboccipital Triangle Anatomy
Epicranial aponeurosis, Occipital belly of occipitofrontalis muscle, Greater occipital nerve (medial branch of posterior ramus of C2 spinal nerve), Occipital artery, Posterior auricular artery, Great auricular nerve (cervical plexus C2, 3), Lesser occipital nerve (cervical plexus C2, 3), Sternocleidomastoid muscle, Trapezius muscle, Splenius capitis muscle (cut), Semispinalis capitis muscle (cut), Semispinalis cervicis muscle, Splenius cervicis muscle C2 vertebra, Longissimus capitis muscle, Splenius capitis muscle (cut and reflected)

Suboccipital Triangle Anatomy

Greater occipital nerve (posterior ramus of C2 spinal nerve), Obliquus capitis inferior muscle, Descending branch of occipital artery, Posterior arch of atlas (C1 vertebra), Suboccipital nerve (posterior ramus of C1 spinal nerve), Obliquus capitis superior muscle, Vertebral artery (horizontal segment), Semispinalis capitis muscle (cut and reflected), Rectus capitis posterior major muscle, Rectus capitis posterior minor muscle, Semispinalis capitis and splenius capitis muscles in posterior triangle of neck, Posterior cutaneous branches of posterior rami of C4, 5, 6 spinal nerves, 3rd occipital nerve (posterior ramus of C3 spinal nerve), 3rd occipital nerve (medial branch of posterior ramus of C3 spinal nerve).