baby got back Flashcards
action of trapezius
elevate, depress, retract scapula
innervation of trapezius
accessory nerve (X1): motor C3, C4: proprioception
vasculature of trapezius
transverse cervical vessels
action of latissimus dorsi
adduct, extend, medially rotate humerus
innervation of latissimus dorsi
thoracodorsal nerve (C6-C8)
vasculatrure of latissimus dorsi
toracodorsal vessels and intercostal vessels
action of levator scapulae
elevate scapula
innervation of levator scapulae
C3, C4 and dorsal scapular nerve (C4, C5)
vasculature of levator scapulae
transverse and ascending cervical vessels
action of rhomboid major and minor
retract and elevate scapula
innervation of rhomboids
dorsal scapular nerve (C4, C5)
vasculature of rhomboids
dorsal scapular vessels
action of serratus posterior superior
inspiration (ribs 2-5)
innervation of serratus posterior superior
T2-T5
action of serratus posterior inferior
expiration (ribs 9-12)
innervation of serratus posterior inferior
T9-T12
action of splenius capitis
together: draws head back, extending neck
individually: rotates and draw head to one side (same side)
innervation of splenius capitis
posterior rami of middle cervical nn.
action of splenius cervicis
together: extend neck
individually: draw and rotate head (same side)
innervation of splenius cervicis
posterior rami of lower cervical nn
action of semispinalis
together: extend trunk/vertebral column
individually: rotate trunk contralaterally
what nerve passess through semispinalis capitis?
Greater Occipital N (C2)
action of erector spinae
erect spine
innervation of erector spinae muscles
dorsal rami of spinal nn.
