Minor serratus posterior inferior muscle

LOWER LOWER BACK MUSCLE SERRATO

SITUATION

• It is located in the lower back.
• It extends from the spine to the last 4 ribs.

ORIGIN

• spinous process of the last two thoracic vertebrae and the first 3 lumbar vertebrae. As in the interspinous ligament.
• Or in the spinous processes of T11-L2.

INSERTION

• bottom edge and the side face of the 3 or 4 last ribs.
• Or in the posterolateral aspect of the last 4 ribs.

INNERVATION : For the 9, 10 and 11 Intercostal Nerves.

FUNCTION

• Lowering the ribs.

Ad