Arm and Cubital Fossa Flashcards
what does the brachial a. give off?
deep brachial a.?
sup. and inf. ulnar collateral
radial and middle collateral
biceps brachii action
innervation
supinates forearm, flex forearm when supine
short head resists dislocation of the shoulder
musculocutaneous n. (C5, C6)
coracobrachialis action
innervation
flex and ADDuct arm at shoulder joint, resists dislocation
musculocutaneous n. (C5, 6, 7)
brachialis action
innervation
flex forearm @ elbow joint
musculocuatenous n. lateral portions get radial n.
what innervates the ant. compartment of the arm?
vasculature?
musculocutaneous n.
brachial a.
anconeus action
innervation
assists triceps in extension of forearm
ABducts during pronation
radial n. (C7, C8, T1)
triceps brachii action
innervation
extend forearm @ elbow joint
long head resists dislocation @ shoulder joint
radial n. (C6, 7, 8)
what innervates the post. compartment of the arm?
blood supply?
radial n.
deep brachial a.
what are the boundaries of the cubital fossa?
Lateral: brachioradialis (LB) Medial: pronator teres (PM) Superior: fake line b/w epicondyles Roof: bicipital apopneurosis Floor: supinator and brachioradialis (BFS)
Contents of the Cubital fossa?
My Big Butt Turns Red
median n. bifurcation of radial and ulnar a. brachial veins tendon of biceps brachi and bicipital apopneurosis radial n. (superficial & deep)
what is the cause of the funny bone?
what artery runs with it?
ulnar n.
post. ulnar recurrent
what is the cubital anastomosis brachial-ulnar a.?
SPIA
sup. ulnar collateral - post. ulnar recurrent
inf. ulnar collateral - ant. ulnar recurrent
what is the cubital anastomosis deep brachial a. - radial & interosseous a.?
RR, MI
radial collateral a. - radial recurrent a.
middle collateral a. - interosseous recurrent a.
What does the axillary artery branch into?
brachial a. –> deep brachial a.
