Splenius Capitis
0
splenius cervicis
0
nuchal ligament and spinous processes of c7-t6
origins of splenius muscles
mastoid process and lateral third of superior nuchal line
insertion of splenius capitis
c1-c4 transverse processes
insertion of splenius cervicis
erector spinae muscles
0
iliocostalis
0
longissimus
0
spinalis
0
angles of ribs
insertion of lumborum and thoracis portions of iliocostalis
cervical transverse processes
insertion of cervicis portion of iliocostalis
thoracic transverse processes and adjacent ribs
insertion of thoracis portion of longissimus
cervical transverse processes
insertion of cervicis portion of longissimus
mastoid process
insertion of capitis portion of longissimus
spinous processes of upper thoracic and mid cervical vertebra
attachment of spinais
transversospinalis
0
spinous processes and occipital bone
insertions of transversospinalis
semispinalis capitis
0
semispinalis cervicis/thoracis
superficial layer of transversospinalis muscle spanning 4-6 segments
multifidus
middle layer of transversospinalis muscle spanning 2-4 segments and best developed in lumbar region
roratores
deepest layer of transversospinalis muscle spanning 1-2 segments and best developed in thoracic region
levator costarum
minor deep layer muscle that elevates ribs and aids in lateral flexion
interspinales and intertransversarii
minor deep layer muscles that stabilize the back and aid in lateral flexion, extension, and rotation
levator costarum
0
interspinales
0
intertransversarii
0
transverse processes
origin of levator costarum
between tubercle and angle of ribs
insertion of levator costarum
thoracolumbar fascia
three-layered dorsal aponeurosis that serves as a site of attachment, invests various muscles including the intrinsic back muscles
posterior layer of thoracolumbar fascia
portion of thoracolumbar fascia extending laterally from the spinous processes and overlying intrinsic muscles of the back, partial origin for latissimus dorsi
middle layer of thoracolumbar fascia
portion of thoracolumbar fascia extending laterally from transverse processes, investing the ventral side of the back's deep muscles. Continuous with tendon of origin for the transversus abdominis and internal abdominal oblique
anterior (ventral) layer of thoracolumbar fascia
deepest layer of thoracolumbar fascia
suboccipital muscles
deepest of the dorsal cervical muscles with primarily postural and proprioceptive functions
suboccipital nerve (dorsal ramus of c1)
innervation of suboccipital muscles
vertebral and occipital arteries
blood supply of suboccipital muscles
rectus capitis posterior major
0
spinous process of axis
origin of rectus capitis posterior major and obliquus capitis inferior
middle portion of inferior nuchal line
insertion of rectus capitis muscles and obliquus capitis superior
rectus capitis posterior minor
0
posterior tubercle of atlas
origin of rectus capitis posterior minor
obliquus capitis superior
0
transverse process of atlas
origin of obliquus capitis superior and insertion of obliquus capitis inferior
obliquus capitis inferior
0
suboccipital triangle
0
trapezius, spenius capitis, and semispinalis capitis
roof of suboccipital triangle
rectus capitis posterior and obliquus capitis muscles
borders of suboccipital triangle
posterior atlanto-occipital membrane and posterior arch of atlas
floor of suboccipital triangle
suboccipital nerve
nerve that emerges from the center of suboccipital triangle and gives muscular branches to suboccipital muscles
vertebral artery
artery that passes through the suboccipital triangle
greater occipital nerve
nerve that emerges inferior to obliquus capitis inferior and pierces semispinalis muscle to innervate skin of posterior scalp
occipital artery
branch of carotid artery that emerges lateral to obliquus capitis superior and courses superiorly to supply posterior scalp