Intermediate Intrinsic Back Muscles Flashcards
1
Q
Erector spinae origin
A
- posterior iliac crest
- posterior sacrum
- sacro-iliac ligaments
- sacral & inferior lumbar spinous process
- supraspinous ligament
2
Q
Erector Spinae action
A
Bilateral: extension of spine
Unilateral: ipsilateral lateral flexion
3
Q
3 muscles making erector spinae
A
Iliocostalis, longissimus
spinalis
4
Q
What are 3 muscles making spinalis
A
capitis, colli, thoracis
5
Q
what are 3 muscles making longissimus
A
capitis, colli, thoracis
6
Q
what are 3 muscles of iliocostalis
A
colli, thoracis, lumborum
7
Q
Spinalis insertion
A
8
Q
longissimus insertion
A
- thoracic & cervical transverse process
- mastoid process
9
Q
iliocostalis insertion
A
- lower ribs
- cervical transverse process
10
Q
Erector Spinae nerve
A
posterior rami of spinal nerves
