Deep Muscles of Neck & Suboccipital Triangle

Question 1

Splenius Capitis

Answer 1

A: From ligamentum nuchae and lower cervical & upper thoracic spinous processes to the lateral third of the superior nuchal line
Fx: Extension and lateral flexion of the head

Question 2

Splenius cervicis

Answer 2

A: From spinous processes of upper thoracic vertebrae to transverse processes of upper three cervical vertebrae
Fx: Together extend neck, single side does ipsilateral rotation

Question 3

Longissimus Capitis

Answer 3

A: From the upper thoracic transverse processes to the posterior margin of the mastoid process
Fx: Extension & Ipsilateral rotation of the head

Question 4

Seminspinalis Capitis

Answer 4

A: From the upper thoracic & cervical transverse processes to the occipital bone between the inferior & superior nuchal lines
Fx: Extension of the head

Question 5

Seminspinalis Cervicis

Answer 5

A: From upper thoracic transverse processes to cervical spinous processes
Fx: Extension of the neck

Question 6

Rectus Capitis Posterior Major

Answer 6

A: From the spinous process of the axis to the adjacent occipital bone
Fx: Extension of the head

Question 7

Rectus Capitis Posterior Minor

Answer 7

A: From the posterior tubercle of the atlas to the adjacent occipital bone
Fx: Extension of the head

Question 8

Obliquus Capitis Inferior

Answer 8

A: From the spinous process of the axis to the transverse process of the atlas
Fx: Ipsilateral rotation of the head

Question 9

Obliquus Capitis Superior

Answer 9

A: From the transverse process of atlas to the occipital bone between superior & inferior nuchal lines
Fx: Posterolateral flexion of the head