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32 Cards in this Set
- Front
- Back
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trapezius origin
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occipital protruberance, superior nuchal line, nuchal ligament, thoracic vertebra
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trapezius insertion
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clavicle, spine, acromion of scapula
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trapezius innervation
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cranial nerve #11
spinal accessory nerve |
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trapezius blood supply
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transverse cervical artery
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trapezius action
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suspends shoulder, adducts scapula, rotates scapula
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lattisimus dorsi origin
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lower thoracic, lumbar, sacral vertebrae
lower ribs ilium |
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lattisimus dorsi insertion
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intertubercular groove of humerus
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lattisimus dorsi innervation
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thoracodorsal nerve (from brachial plexus)
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lattisimus dorsi action
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extends, adducts, rotates arm medially
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levator scapulae origin
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upper cervical vertebrae
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levator scapulae insertion
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superior angle of the scapula
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levator scapulae innervation
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dorsal scapular nerve (from brachial plexus)
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levator scapulae action
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raises scapula
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rhomboid major origin
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upper thoracic vertebrae
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rhomboid major insertion
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medial border of scapula
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rhomboid major innervation
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dorsal scapular nerve
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rhomboid major action
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adducts and raises scapula
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Rhomboid minor origin
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upper thoracic vertebra
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Rhomboid minor insertion
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medial border of scapula
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Rhomboid minor innervation
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dorsal scapular nerve
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Rhomboid minor action
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adducts and raises scapula
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Serratus posterior superior origin
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upper thoracic vertebra
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Serratus posterior superior insertion
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ribs 2-5
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Serratus posterior superior innervation
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intercostal nerves
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Serratus posterior superior action
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elevates upper ribs
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Serratus posterior inferior origin
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lower thoracic and upper lumbar verterbrae
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Serratus posterior inferior insertion
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lower 4 ribs
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Serratus posterior inferior innervation
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intercostal nerves
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Serratus posterior inferior action
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depresses lower ribs
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Name muscles of superficial layer
What do they all act on? What innervates them? |
trapezius, lattisimus dorsi, rhomboid major, rhomboid minor, levator scapulae
limbs VPRs |
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Name muscles of intermediate layer
What do they all act on? What innervates them? |
serratus posterior superior, serratus posterior inferior
ribs to aid respiration VPR |
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Name muscles of deep layer
What do they all act on? What innervates them? |
splenius capitis & semispinalis capitis are extensors and rotators of the NECK
erector spinae (spinalis muscle, longissimus muscle, and iliocostalis muscle) are extensors and rotators of the BACK Transversospinalis division (Multifidi, rotators) DPR |
