Back + Thoracic Cage + Abdominal Wall Flashcards
2 groups of dorsal muscles
Extrinsic (migrated)
Intrinsic (autochthonous)
Extrinsic muscles innervation
Anterior rami
Extrinsic muscles groups
Superficial
Intermediate
Extrinsic muscles superficial group
Trapezius
Latissimus dorsi
Levator scapulae
Minor rhomboid
Major rhomboid
Extrinsic muscles intermediate group
Posterosuperior serratus
Posteroinferior serratus
Trapezius innervation
Accessory nerve (CN XI)
Trapezius function
Scapular elevation, retraction and rotation
Neck lateral flexion and extension
Latissimus dorsi innervation
Thoracodorsal nerve
Latissimus dorsi function
Shoulder retraction, adduction, internal rotation and extension
Levator scapulae innervation
Dorsal scapular nerve
Levator scapulae function
Scapular elevation
Lateral neck flexion
Minor rhomboid innervation
Dorsal scapular nerve
Minor rhomboid function
Retraction, rotation and scapula stabilisation
Major rhomboid innervation
Dorsal scapular nerve
Major rhomboid function
Retraction, rotation and scapula stabilisation
Posterosuperior serratus innervation
Spinal nerves T1-T4
Posterosuperior serratus function
Ribs elevation
Posteroinferior serratus innervation
Spinal nerves T9-T12
Posteroinferior serratus function
Ribs depression
Intrinsic muscles groups
(+superficial to +deep, +long to + short)
Spinotransverse
Erector spinae
Transversoespinalis
Short segmental
Spinotransverse intrinsic muscles
Splenius capitis
Splenius colli
Erector spinae intrinsic muscles
Iliocostalis muscles
Longissimus muscles
Spinalis
Transversoespinalis intrinsic muscles
Semiespinalis muscles
Multifidus
Rotators
Short segmental intrinsic muscles
True segmentaries:
Interspinous and intertransverse
Levator costarum