Flashcards in brachial plexus and blood supply geography Deck (17):
what three muscles attach on the greater tuberosity?
supraspinatus, infraspinatus, and teres minor
name the muscles found attaching in the intertubicular sulcus, from lateral lip, to medial
pecs, lats teres major
what important structures pass through the surgical neck of the humerus, (the weak spot)
axillary nerve, and posterior circumflex artery
what structures anchor the clavicle at the sternum?
a and p sternoclavicular ligament, costoclavicular lig, interclavicular lig
what ligaments are found at the claivic/ coracoid araea?
coraco clavicular ligament, made from the conoid and trapezius lig, coraco-acromial lig,
name some structures that help to stablize Gh joint
glenoid labrum, joint capsule and synovial sheath,
GH capsular ligaments:
transverse humeral, (S,M,I) glenohumoral, corocohumoral
where does the innervation to the trapezius run?
deep to traps (sup-inf) superficial to rhomboids is the spinal accessory nerve.
the axillary nerve (to what?) travels where to its muscle?
branches off the posterior cord, then travels behind the arm to the deltoid, wraps around with the post circumflex humoral artery
innervation to the lat is, and where?
Thoracodorsal, runs out of posterior cord, and then down through the axilla to the side of thorax (lat)
what innervates the teres major? and where does it go?
comes off the posterior cord, then follows the anterior surface of the scapula, wraps to front
what are the muscles of the rotator cuff?
supraspinatus, infraspinatus, subscapularis,teres minor
what passes through the triangular space?
the radial nerve (originates from posterior cord), as it passes to the back with the profunda brachii artery
how do you differentiate between circumflex scapular artery, and posterior circumflex artery?
scap passes through triangular space (medial to biceps), humoral is closer to bone, quadrangular space
which peripheral nerves branch off the superior trunk (and are thus c5, c6?
suprascapular, dorsal scapular, long thoracic (add 7) and subclavian
what nerve does the musculocutaneous nerve become?
the lateral cutaneous