Surface back muscles Flashcards
Serratus posterior superior and inferior
Serratus posterior superior nerve supply
Intercostal nerves 2-5
Serratus posterior superior proximal attachment
- Supraspinal ligament
- Ligamentum nuchael
- Spinous process of T1-T3
- 7th cervical vertebra
Serratus posterior superior distal attachment
-Upper borders of ribs
trapezius
Nerve supply of the trapezius
Spinal accessory (C9)
trapezius proximal attachment
- Superior nuchal line
- Nuchal ligament
- External occipital protuberance
- Spinous process C7-T12
trapezius distal attachment
- Lateral 3rd of clavicle
- Acromion and spine of clavicle
trapezius actions
- Elevates, depresses and retracts the scapula
- Rotates glenoid cavity superiorly
What is found between the trapezius, infraspinatus, and lat?
triangle of auscultation
Latimus dorsi
Latimus dorsi nerve supply
Thoracodorsal
Latimus dorsi proximal attachment
- Spinous process of inferior 6 thoracic vertebrae
- Thoracolumbar fascia
- Iliac crest
- Inferior 3-4 ribs
Latimus dorsi distal attachment
floor of bicipital groove
Latimus dorsi actions
- Extends, adducts, medially rotates the humorous
- Raises body towards arms during climbing
what are the three transverse spinalis muscles?
- Semi-spinalis
- Multifidus
- Rotators
longissimus thoracis
Spinalis thoracis
iliocostalis lumborum
3 erector spine muscles
Longissimus thoracis
Spinalis thoracis
iliocostalis lumborum
Splenius capitis
Splenius cervicis
rhomboid major
rhomboid minor
rhomboid major nerve supply
Dorsal scapula (C5)
rhomboid major proximal attachment
Spinous process T2-5
rhomboid major distal attachment
Medial border of scapula
-From spine to inferior angle
rhomboid minor nerve supply
Dorsal scapula (C5)
rhomboid minor proximal attachment
- Nuchal ligament
- Spinous process C7-T1
rhomboid minor distal attachment
Smooth triangular area at the medial end of the scapula spine
Levitator scapula
Levitator scapula nerve supply
Dorsal scapula (C5)
Levitator scapula proximal attachment
Posterior tubercles of transverse processes of C1-4 vertebrae
Levitator scapula distal attachment
Medial border of scapula
-Superior to the root of the scapular spine
Rhomboid actions
- Retracts scapula
- rotates glenoid cavity inferiorly
- fixes scapula to thoracic wall
Levitator scapula actions
- Elevates scapula
- rotates glenoid cavity inferiorly by rotating scapula
Serratus posterior inferior nerve supply
Intercostal nerves 9-12
Serratus posterior inferior proximal attachment
- Supraspinal ligament
- spinal process of L1-3
- Lower T11-T12 vertebrae
Serratus posterior inferior distal attachment
inserts on lower borders of ribs 9-12
Thoracolumbar fascia
Thoracolumbar fascia is a flat sheet of what?
And what is this called?
Tendon Aponeurosis (connective tissue)
2 functions of Thoracolumbar fascia
- Binds muscles and connects muscle to bone
2. Transfers load/ energy from ribs to pelvis
3 layers of the Thoracolumbar fascia and which is the thinnest and thickest
- Anterior layer (thinnest)
- Middle layer
- Posterior layer (thickest)
What layers of the Thoracolumbar fascia attaches to transverse processes?
anterior and middle
What layers of the Thoracolumbar fascia attaches to the quadratus lumborum?
Anterior and middle layer
What layers of the Thoracolumbar fascia attaches to the erector spinae muscles
Middle and posterior
What layers of the Thoracolumbar fascia gives rise to the transverse abdominal muscles
Middle layer
Connects gluteus max and lat.
Posterior Thoracolumbar fascia layer
Facilitates oppositional movement of arms and legs
Posterior Thoracolumbar fascia layer