Fig. 2From: The efficacy of ultrasound-guided multifidus cervicis plane block versus greater occipital nerve block for cervicogenic headachea, b Ultrasound imaging of the dorsal neck muscles of two different patients show the (1) multifidus cervicis muscle, (2) semispinalis cervicis muscle, (3) semispinalis capitis muscle, (4) splenius muscle, and (5) trapezius muscleBack to article page