Superficial Back and Shoulder Flashcards
Pectoral Girdle
Clavicle and Scapula
connect the arm to the body
Joints of Pectoral Girdle
Anteriosterno-clavicular joint
Scapulothoracic Articulation
soft tissue only!
between scapula and ribs
Axillary Skeleton
Spine, sacrum, ribs, and skull
Superficial Hypaxial mm of the Back Region
superficial or extrinsic mm of the back that move the upper limb and pectoral girdle
are innervated by branches from the brachial plexus (ventral rami)
Accessory n. XI
mostly motor fxn
sternocleidomastoid mm
trapezius mm
Triangle of Auscultation
less tissue easier to hear breathing sounds
Lumbar Triangle (inferior lumbar triangle, Triangle of Petit)
slight weaking in lateral abdominal wall, prone to herniation
Subclavian a.
major blood supply to upper limb three divisions part 1 - medial to anterior scalene mm part 2 - posterior to anterior scalene mm part 3 - anterior lateral to scalene mm
Subclavian a. Part 1
internal thoracic (mammary) a.
vertebral a.
thyrocervical arterial trunk
Thyrocervial Arterial Trunk
transverse cervical artery - superficial branch, deep branch
inferior thyroid artery
ascending cervical artery
suprascapular artery
Subclavian a. Part 2
costocervical arterial trunk
supreme intercostal artery
deep cervical artery
Subclavian a. Part 3
no branches
but dorsal scapular artery may arise from this point
Lateral border of 1st rib
subclavian artery becomes the axillary artery
Scapular Anastomoses
suprascapular artery dorsal scapular artery posterior interconstal arteries circumflex scapular artery thoracodorsal artery
