Trunk Muscles Flashcards
Rectus Abdominis
O: Pubis Crest
I: Xiphoid Process + Costal Cartilage Ribs 5-7
A: Trunk Flexion
N: 7-12 Intercostal Nerves
Eternal Oblique
O: Iliac Crest + Pubic tubercle + Linea Alba
I: Lower 8 ribs Laterally
A: Bilaterally: Trunk Flexion
Unilaterally: Ipsilateral Bending Contralateral Rotation
N: 8-12 Intercostal nerves + iliohypogastiric+ ilioinguinal
Internal Oblique
O: Inguinal ligament + iliac crest + thoracolumbar fascia
I: Ribs 8- 12 + Linea Alba
A: Bilaterally: Trunk Flexion
Unilaterally: Ipsilateral Lateral Bend + Rotation
N: 8-12 Intercostal nerves + iliohypogastiric+ ilioinguinal
Transverse Abdominis
O: Inguinal ligament + Iliac Crest + Costal Cartilage of last 7 ribs
I: Pubic Crest Linea Alba + Abdominal Aponeurosis
A: Abdominal Compression
N: 7-12 Intercostal nerves + iliohypogastiric+ ilioinguinal
Transversospinalis
O: Transverse Process
I: Spinous Process of superior vertebrae
A: Bilaterally: Extend neck + trunk
Unilaterally: Contralateral head neck and trunk rotation
N: Spinal NervesInterspinalis
O: Spinous Process below
I: Spinous Process Above
A: Extends neck + trunk
N: Spinal Nerves
Intertransversarii
O: Transverse Process below
I: Transverse Process above
A: Ipsilateral Lateral neck + head bend
N: Spinal Nerves
Quadratus Lumborum
O: Iliac Crest
I: 12 Rib +Transverse process of all L1 - L5 Vertebrae
A: Trunk Lateral Bending
N: T12 + L1 Nerves
Erector spinae muscles
Illocostalis
Longissimus
Spinalis
Illiocostalis
O: iliac crest+ lower ribs
I:Angle of robs upper ribs transverse process of c vertebrae
Transversospinalis
Semispinalis
Multifidus
Rotatores
