Erector Spinae

1
Erector Spinae

• 1. Iliocostalis (lateral layer)
• 1. Lumborum
• 2. Thoracis
• 3. Cervicis
• 2. Longissimus (middle)
• 1. Thoracis
• 2. Cervicis
• 3. Capitis
• 3. Spinalis (medial layer)
• 1. Thoracis
• 2. Cervicis
• 3. Capitis

2
Erector Spinae

• 1. Iliocostalis (lateral layer)
• 1. Lumborum
• 2. Thoracis
• 3. Cervicis
• 2. Longissimus (middle)
• 1. Thoracis
• 2. Cervicis
• 3. Capitis
• 3. Spinalis (medial layer)
• 1. Thoracis
• 2. Cervicis
• 3. Capitis

3
Erector Spinae (sacrospinalis)
3
3
3
2
2
2
1
1
1
Longissimus
Spinalis
Iliocostalis
4
Erector Spinae

• 1. Iliocostalis (lateral layer)
• 1. Lumborum
• 2. Thoracis
• 3. Cervicis
• 2. Longissimus (middle)
• 1. Thoracis
• 2. Cervicis
• 3. Capitis
• 3. Spinalis (medial layer)
• 1. Thoracis
• 2. Cervicis
• 3. Capitis

5
Erector Spinae (sacrospinalis)
3
3
3
2
2
2
1
1
1
Longissimus
Spinalis
Iliocostalis
6
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