Intrinsic Back Muscles

Question 1

Transverso-Spinalis Muscles

Multifidus

Answer 1

Group of small muscles that connect from the Transverse process to the spinous process ( they look kind of like a ladder ).
From L5 - C2
This muscle plays an important role in stabilization of the Vertebral Column together with the Abdominal muscles.

Question 2

Transverse-Spinnal Muscles

Sempispinalis

Answer 2

Capitis
Cervicis
Thoracis

Over 4 - 6 lvl

Question 3

Tranverse-Spinalis Muscles

Rotatores ( Longus, Brevis )

Answer 3

The most prominent in the thoracic region.

Question 4

Deep Minor Layer

Intrinsic and most smallest Muscles

Answer 4

Interspinales & Intertransversi
Present mostly in Lumbar and cervical region.
Important with extension of the head and propriocepsis ( which is realizing the position of the body; stimuli )

Levator Costarum

Question 5

Erector Spinae Muscles

Answer 5

These muscles are covered by the Thoracolumbar Fascia ( clearly visible in the lower back ).
Spinalis is more Laterally
Longissimus is Intermedially
Spinalis is Medially