Proximal Upper Extremity Flashcards
inferior to the spine of the scapula is the ___ fossa
infraspinatus fossa
where does the supraspinatus muscle originate (don’t think to hard here)
supraspinatus fossa of scapula
attaches to superior part of greater tubercle
to what portion of the spine does the levator scapular attach?
cervical spinous processes
along the medial border of the scapula, attaching to the cervical and thoracic spinous processes, is this muscle. What is?
rhomboid muscle
where is the platysma muscle and what does it do?
in the neck, controls facial expression
the serratus anterior, which forms the medial wall of the axilla, is supplied by which artery?
long thoracic artery
what important vein is found in the deltopectoral groove?
cephalic vein
this nerve provides motor innervation to the anterior arm and cutaneous sensation to the lateral forearm. What is?
musculocutaneous nerve
the spinal accessory nerves supplies the ____ muscle and crosses the posterior triangle to run on the deep surface of the ____
spinal accessory nerve - runs deep on the surfaces trapezius to supply both the trapezius and the sternocleidomastoid
the axillary nerve and posterior humeral circumflex vessels pass around the neck of the humerus to supply the ___ (2 muscles)
deltoid and teres minor
the supraspinatus muscle passes deep to the acromioclavicular joint to attach to the ____
greater tubercle of the humerus
entrapment of the suprascapular nerve can cause pain in the shoulder, lateral arm, and forearm, and weakness of the supraspinatus and infraspinatus which it innervates. Where does the entrapment occur?
suprascapular notch
which of these rotator cuff muscles does not attach to the greater tubercle of the humerus? supraspinatus teres minor subscapularis infraspinatus
subscapularis attaches to the lesser tubercle
supraspinatus, teres minor, and infraspinatus attach to greater tubercle
