| Question |
Answer |
| What muscles are in the 1st layer? |
Trapezius & Latissumus dorsi |
| What muscles are in the 2nd layer? |
Levator Scapula; Rhomboid major& minor |
| What muscles are in the 3rd layer? |
Serratus posterior superior & inferior |
| What muscles are in the 4th layer? |
Splenius capitis & cervicis |
| What muscles are in the 5th layer? |
3 Iliocostalis, 3 Longissimus, 3 Spinalis |
| What muscles are in the 6th layer? |
3 Semispinalis, 3 Multifidis, 3 Rotatores |
| What are the 3 Iliocostalis muscles? |
Lumborum, Thoracis, Cervicis |
| What are the 3 longissimus muscles? |
Thoracis, cervicis, capitis |
| What are the 3 spinalis muscles? |
Thoracis, cervicis, capitis |
| What are the 3 semispinalis muscles? |
Thoracis, cervicis, capitis |
| What are the 3 multifidus muscles? |
lumborum, thoracis, cervicis |
| What are the 3 rotatores muscles? |
lumborum, thoracis, cervicis |
| Serratus Posterior Superior O |
Lower portion of ligamentum nuchae, SP of C7-T3, supraspinous ligaments |
| Serratus Posterior Superior I |
ribs 2-5 |
| Serratus Posterior Superior N |
Ventral rami T2-T5 |
| Serratus Posterior Superior A |
Elevates ribs 2-5 |
| Serratus Posterior Inferior O |
SP |
| Serratus Posterior Inferior I |
ribs |
| Serratus Posterior Inferior N |
Ventral rami of T9-T12 |
| Serratus Posterior Inferior A |
Depress ribs 9-12, aids respiration |
| Splenius capitis O |
SP |
| Splenius capitis I |
Mastoid process; temporal bone; occiput below lateral part of superior nuchal line |
| Splenius capitis A |
Extend head bilaterally; lateral flex and rotate face to same side, unilaterally |
| Splenius capitis N |
lat. branches of dorsal rami of C5-C7 |
| Which back muscles are "Erector spinae muscles"? |
Iliocostalis lumborum, |
| Erector spinae muscles common origin |
SP and supraspinous ligament of T11-L5; median sacral crest; sacrotuberous ligament; posterior sacroiliac ligament; lateral sacral crest; posteromedial iliac crest |
| Erector spinae muscles |
5th layer |
| Splenius cervicis O |
SPs |
| Splenius cervicis I |
TPs |
| Splenius cervicis A |
extend neck bilaterally; unilaterally lateral flex and rotate face toward same side |
| Splenius cervicis N |
lat. branches of dorsal rami of C5-C7 |
| Iliocostalis lumborum O |
common origin of erector spinae muscles |
| Iliocostalis lumborum I |
ribs |
| Iliocostalis thoracis O |
ribs |
| Iliocostalis thoracis I |
ribs and TP of C7 |
| Iliocostalis cervicis O |
ribs |
| Iliocostalis cervicis I |
TP |
| Longissimus thoracis O |
Common origin of erector spinae; TP's and AP's of Lumbar vertebrae |
| Longissimus thoracis I |
3rd-12th ribs; TPs |
| Longissimus cervicis O |
TPs |
| Longissimus cervicis I |
TPs and APs |
| Longissimus capitis O |
TPs; APs |
| Longissimus capitis I |
mastoid process temporal bone |
| Spinalis thoracis O |
SPs |
| Spinalis thoracis I |
SPs |
| Spinalis cervicis O |
SPs |
| Spinalis cervicis I |
SPs |
| Spinalis capitis O |
TPs ; APs , sometimes SP of C7 & T1 |
| Spinalis capitis I |
Occiput btwn superior and inferior nuchal lines |
| Action of Iliocostalis and Longissimus muscles |
Extend and laterally flex spine. |
| Nerves of Erector spinae muscles |
Dorsal rami |
| Action of spinalis thoracis and cervicis |
Extend spine |
| Action of spinalis capitis |
extend head |
Cardio Block2anatomy
