Vertebral column Flashcards
Actions of Superficial, intermediate, deep back muscles
Superficial: anchor UL to axial skeleton
Intermediate: respiration
Deep: posture
Superficial back muscles (5)
trapezius latissimus dorsi rhomboid major rhomboid minor levator scapulae
Trapezius Action
elevates, depresses, retracts scapula
Trapezius Neurovasculature
CNXI, C3, C4
Transverse cervical vessels
Latissimus dorsi action
adducts, extend & medially rotates humerus
Latissimus dorsi neurovasculature
thoracodorsal nerve
thoracodorsal and intercostal vessels
Levator scapula action
elevates scapula
Levator scapula neurovasculature
C3, C4, dorsal scapular nerve
dorsal scapular vessels
Rhomboid minor & major action
retract/adduct & elevate scapula
Rhomboid minor and major neurvasculature
dorsal scapular nerve
dorsal scapular vessels
Intermediate muscles of the back
Serratus posterior superior
Serratus posterior inferior
Erector spinae lateral to medial (3)
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iliocostalis
longissimus
spinalis
Splenius capitus action
draw head backward, extend neck, rotate head/face (ipsilateral)
Spenius cervicis action
extend neck, rotate head/face (ipsilateral)
Suboccipital triangle muscles
Contains
obliquus capitus superior obliquus capitus inferior rectus capitus posterior major Vertebral artery suboccipital n. (c1)
Erector spinae neurovasculature
dorsal rami of spinal nerve
lumbar & intercostal vessels
Multifidus action
laterally flexes & rotates spine
Multifidus neurovasculature
dorsal rami of spinal nerve
lumbar vessels
Rotatores action
rotate spine, extend vertebral column
Rotatores neurovasculature
dorsal rami of spinal nerve
intercostal vessels
Minor deep muscles of the back
interspinalis
intertransversarius
levatores costarum
Serratus anterior action
protracts scapula & holds it to body cavity
Serratus anterior neurovasculature
long thoracid nerve
lateral thoracic vessels
Triangle of auscultation boundaries
Superior: trapezius
inferior: latissimus dorsi
lateral: rhomboid major
floor: 6th intercostal space
