LG 3.1 - Anatomy: Brachial Region Flashcards
Damage/ fracture at surgical neck could result in _____ nerve damage?
Axillary nerve
Damage/ spiral fracture at radial groove could result in ______ nerve damage?
Radial nerve
Damage/ fracture at distal humerus could result in ______ nerve damage?
Median nerve
Damage/ fracture at medial epicondyle of the humerus could result in _______ nerve damage?
Ulnar nerve
This image shows a fracture at what structure on the humerus? Would be most common in what age group, why?
The surgical neck.
Most common in adults, growth plate has cealed and is no longer weak there, therefore fracture is most likely to occur here.
This image demonstrates a fracture at what anatomical location on the humerus? Most common in what age group, porque?
Anatomical neck fracture.
Most common in children, this is due to the presence of the epiphyseal plate and weakness in this area can cause this to be a vulnerable place for fracture.
The superior and inferior fibers of trapezius work mostly to cause what motion on the scapula?
Mostly work on rotation of scapula.
The middle fibers of the trapezius work mostly to do what motions on the scapula?
Mostly to retract scapula.
Classification of the movement of the scapula is based on the movement of what structure?
Based on the movement of the glenoid fossa.
What 3 muscles insert on the intertubercular groove, in what order? (A Lady between TWO Majors).
Teres Major, Latissimus dorsi, Pectoralis Major.
Activating the anterior fibers of the deltoid would result in what motion of your arm?
Flexion of your arm.
Activating the posterior fibers of the deltoid would result in what motion of your arm?
Extension of your arm.
Which muscles are in the anterior compartment of the arm? What nerve are they innervated by? (BBC)
Biceps brachii, brachialis, and coracobrachialis.
Musculocutaneous nerve.
Median cubital vein is clinically important why? What structure lays underneath it and why is that structure clinically important?
This is where you try to draw blood from.
Aponeurosis helps prevent the needle from hitting a nerve if you miss this vein.
Wish we would have learned this prior to our blood draw date.
Cephalic vein empties into what vein?
Axillary vein.
