V1
V2
V3
V4
100
Nickname:
6-pack muscle
What is Rectus Abdominis?
100
Action:
Compresses abdominal contents
What is Transverse Abdominis?
100
Nickname:
Hip Hiker Muscle
What is Quadratus Lumborum?
100
Spans 1 – 2 vertebrae
Deepest muscle of transversospinalis
Contains subgroupings, rotatores longus & rotatores brevis
What are the Rotatores?
200
Rectus Abdominis Insertions (2)
What are?
Ribs 5-7 (costal cartilage-anterior surface)
Xiphoid process
200
Rectus Abdominis actions (4)
Actions:
Flexes vertebral column
Laterally flexes vertebral column
Compresses abdominal contents
Posteriorly tilts pelvis
200
Which muscle is this, here are the actions
Actions(5):
Laterally flexes vertebral column
Rotates vertebral column
Flexes vertebral column
Compresses abdominal contents
Posteriorly tilts pelvis
What is External Obliques?
200
The deepest abdominal muscle
Wraps internal organs like a corset
What is the Transverse Abdominis?
300
Erects the spine like a “silo”.
Lie in the lamina groove.
Called the sacrospinalis muscle.
Runs parallel to the spine.
They fan out medial to lateral.
What is Erector Spinae?
300
Insertions:
Mastoid process
Transverse processes of C2-T12
Ribs 4-12 (posterior surface)
What is the Longissimus?
300
Spans 2-4 vertebrae
The middle, lies between semispinalis and rotatores
What is the Multifidus?
300
This group of muscles are called?
What is Semispinalis
-Capitis
-Cervicis
-Thoracis
400
Quadratus Lumborum origins (1) insertions (2)
Origin:
Posterior iliac crest
Insertions(2):
Rib 12 (inferior surface)
Transverse processes of L1-4
400
Erector Spinae muscles
What are:
Spinalis, Iliocostalis, Longissimus
400
This group of muscles are called?
-Semispinalis
-Rotatores
-Multifidus
What is Transversospinalis?
400
External Obliques actions (5)
Actions(5):
Laterally flexes vertebral column
Rotates vertebral column
Flexes vertebral column
Compresses abdominal contents
Posteriorly tilts pelvis
500
Transverse Abdominis
actions (1) origins (4) insertions (2)
Action:
Compresses abdominal contents
Origins:
Ribs 7-12 (costal cartilage-inner surface)
Iliac crest
Thoracolumbar aponeurosis
Inguinal ligament
Insertions:
Abdominal aponeurosis
Linea alba
500
Spinalis actions (2) unilateral contraction and bilateral contraction, and origins (2)
Actions:
(unilateral contraction)
Laterally flexes vertebral column
(bilateral contraction)
Extends vertebral column
Origins:
Spinous process C4-T12
C7 and nuchal Ligament
500
Iliocostals origins (3) and insertions (2)
Origins:
Posterior iliac crest
Posterior sacrum
Ribs 3-12 (posterior surface)
Insertions:
Ribs 1-12 (posterior surface)
Transverse processes of C4-C7
500
Name the actions (5) of the internal obliques
What are
Actions:
Laterally flexes vertebral column
Rotates vertebral column
Flexes vertebral column
Compresses abdominal contents
Posteriorly tilts pelvis