deeper intrinsic back muscles

Question 1

• Spinotransverse group

Answer 1

• from a spinous process to the transverse elements of vertebrae at various levels below
• Rotatores: Deepest and shortest.
  They can span 1 segment
• Semispinalis: Most superficial, they span about 6 segments
• Multifidus: They span 2, 3 or 4 segments

Question 2

Interspinales

Answer 2

• short muscles attached between the spinous processes of contiguous vertebrae,

Question 3

Intertransversarii

Answer 3

short muscles attached between the transverse processes of contiguous vertebrae

Question 4

Suboccupitals

Answer 4

• Rectus capitis posterior major (more lateral): from the spine of the axis to the inferior nuchal line
• Rectus capitis posterior minor (more medial): from the posterior arch of the atlas to the inferior nuchal line
• Obliquus capitis superior (above and laterally): from the transverse process of the atlas to the nuchal lines
• Obliquus capitis inferior (below and laterally): from the spine of the axis and the transverse process of the atlas