Spine and Thorax

Question 1

What are the five actions of the spine and thorax?

Answer 1

Flexion
Extension
Hyperextension
Lateral Flexion
Rotation

Question 2

Origins: Posterior Surface of Sacrum, Iliac Crest, All Lumbar Vert., Bottom 2 Thoracic Vert.
Insertions: Upper Thoracic Vert., All Cervical Vert.
Actions: Lateral Flexion, Extension, Hyperextension

Answer 2

Erector Spinae

Question 3

Origins: Bottom 6 Thoracic Vert., All Lumbar Vert., Sacrum, Iliac Crest, Last 6 Ribs
Insertion: Anterior Surface of Humorous below the head
Actions: Flexion, Extension, Hyperextension

Answer 3

Latissimus Dorsi

Question 4

Origins: Lower Anterior Pubis, 5/6/7th Ribs, Bottom Sternum
Insertion:
Action: Flexion

Answer 4

Rectus Abdominus

Question 5

Origin: Lower Medial Ribs
Insertion: Anterior Upper Pelvis
Actions: Rotation, Flexion, Lateral Flexion, Compression of Abdomen

Answer 5

External Obliques

Question 6

Origin: Top Pelvis
Insertion: Bottom 3 Ribs
Actions: Rotation, Flexion, Lateral Flexion, Compression of Abdomen

Answer 6

Internal Obliques