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BCD Gross Anatomy-
Back Muscles
35
Anatomy
Graduate
08/31/2007

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Cards

Term
trapezius origin
Definition
occipital protuberance
superior nuchal line
nuchal ligament
thoracic vertebrae
Term
trapezius insertion
Definition
clavicle
spine
acromion of scapula
Term
trapezius innervation
Definition
spinal accessory n (CN X1)
Term
trapezius action
Definition
suspends shoulder
adducts scapula
rotates scapula

(adducts- moves closer to the midline)
Term
trapezius blood supply
Definition
transverse cervical artery
Term
latissimus dorsi origin
Definition
lower thoracic, lumbar, and sacral vertebrae
lower ribs
ilium
Term
latissimus dorsi insertion
Definition
intertubercular groove of humerus

(allows rotation of humerus)
Term
latissimus dorsi innervation
Definition
thoracodorsal nerve (from brachial plexus)
Term
latissimus dorsi action
Definition
extends and rotates arm medially
Term
levator scapulae origin
Definition
upper cervical vertebrae
Term
levator scapulae insertion
Definition
superior angle of the scapula (medial side)
Term
levator scapulae innervation
Definition
dorsal scapular nerve (from brachial plexus)
Term
levator scapulae action
Definition
raises scapula
Term
rhomboid origin
Definition
upper thoracic vertebrae
Term
rhomboid insertion
Definition
medial border of scapula
Term
rhomboid innervation
Definition
dorsal scapular nerve
Term
rhomboid action
Definition
adducts and raises scapula
Term
serratus posterior superior origin
Definition
upper thoracic vertebrae
Term
serratus posterior superior isertion
Definition
ribs 2-5
Term
serratus posterior superior inervation
Definition
intercostal nerves
Term
serratus posterior superior action
Definition
elevates upper ribs
Term
serratus posterior inferior origin
Definition
lower thoracic and upper lumbar vertebrae
Term
serratus posterior inferior insertion
Definition
lower 4 ribs
Term
serratus posterior inferior inervation
Definition
intercostal nerves
Term
serratus posterior inferior action
Definition
depresses lower ribs
Term
extensors and rotators of the neck (2)
Definition
splenius capitis
semispinalis capitis
Term
extensor and rotators of the back
Definition
erector spinae:
ilicostalis
longissimus
spinalis
Term
transversospinalis division
Definition
multifidi
rotators
Term
transversospinalis division
Definition
multifidi
rotators
Term
superficial layer innervation
Definition
VPRs (ventral primary rami
CN XI
Term
intermediate layer inervation
Definition
VPRs
Term
deep layer inervation
Definition
DPRs
Term
lumbar lordosis
Definition
swayback
Term
thoracic kyphosis
Definition
hump back
Term
scoliosis
Definition
lateral curvature
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