Anatomy

Contents of posterior triangle of neck

Occipital artery, spinal accessory nerve, hypoglossal, ascending pharyngeal artery

Occipital artery, lesser occipital nerve, subclavian artery, spinal accessory nerve

Occipital artery, spinal accessory nerve, subclavian artery, hypoglossal nerve

Occipital artery, Lesser occipital nerve, ascending pharyngeal artery, vagus nerve