A&P II - Shoulder MG 3
Terms
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- the rhomboids are deep to the __ muscle and superficial to the __ muscles.
- trapezius - erector spinae
- can you name two actions in which the rhomboids and trapezius are synergists and one action in which they are antagonists
- adduct the scapula - elevate the scapula - rotation of the scapula
- the levator scapula is situated between which two muscles on the lateral side of the neck
- splenius capitis - posterior scalene
- an action to ask your partner to perform to feel the levator scapula contract is
- elevation of the scapula
- when accessing the levator scapula in a supine position, the benefits of rotating the head 45 degrees away from the side you are palpating include:
- shifts the cervical transverse process further anterior - gives the levator more paplable tensions - shortens and softens overlying trapezius
- the serratus anterior abducts the scapula, making it a direct antagonist to the
- rhomboids
- most of the serratus anterior is deep to the scapula and which two muscles
- latissimus dorsi - pectoralis major
- accessing the medial portion of the serratus anterior by curling your fingers around the medial border of the scapula, your fingers will inherently have to work through the bellies of which two muscles?
- trapezius - rhomboids
- the pectoralis major is divided into three segments:
- clavicular - sternal - costal
- can you name an everyday action in which you use your pectoralis major?
- push-ups
- the most important aspect when palpating near breast tissue is:
- communication
- if you follow the fibers of the pectoralis major laterally, they blend with the fibers of which muscle?
- deltoid
- flexing the shoulder and pulling it anteriorly where you palpate the pectoralis major in a sideling position has which two benefits?
- brings the pectoralis major off the chest wall - allows the breast tissue to fall away
- the pectoralis minor has the potential to create neurovascular compression on which three vessels?
- brachial plexus - axillary artery - vein
- Origin of Levator scapula
- transverse processes of first through fourth cervical vertebrae
- Insertion of Levator scapula
- upper region of medial border and superior angle of the scapula
- Origin of Pectoralis Major
- medial half of clavicle, sternum and cartilage of first through sixth ribs
- Insertion of Pectoralis Major
- crest of the greater tubercle of the humerus
- Origin of Pectoralis Minor
- third fourth and fifth ribs
- Insertion of Pectoralis Minor
- coracoid process of the scapula
- Origin of Rhomboid Major
- spinous processes of T-2 to T-5
- Insertion of Rhomboid Major
- medial border of the scapula between spine of scapula and inferior angle
- Origin of Rhomboid Minor
- spinous processes of C-7 and T-1
- Insertion of Rhomboid Minor
- upper portion of medial border of the scapula, across from the spine of the scapula
- Origin of Serratus anterior
- surfaces of upper eight or nine ribs
- Insertion of Serratus anterior
- anterior surface of medial border of the scapula
- Origin of Subclavius
- first rib and cartilage
- Insertion of Subclavius
- inferior, lateral aspect of clavicle