10: cubital fossa

what is the cubital fossa

transition area from arm to forearm

anterior to elbow joint

triangular shaped

borders of the cubital fossa

medial: pronator teres

lateral: brachioradialis

superior border: inter epicondylar line

roof:

• brachial and antebrachial fasica

• bicipital aponeurosis

• skin and subcutaneous tissue

floor

• supinator muscle (posterior forearm muscle)

• brachialis

contents of the cubital fossa lateral to medial

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• radial n (deep to brachialis)

• biceps brachii tendon

• brachial a. (and its terminal branches - ulnar and radial aa)

• median nerve

where does hte ulnar nerve travel

posterior to cubital fossa behind medial epicondyle and make its way back to anterior forearm compartment

what structures are found superficial to brachial and anterbrachial fasica

• medial cutaneous n of the forearm (C8,T1)

• lateral cutaneous nerve of the forearm (termination of musculocutaneous n)

• median cubital vein (connection between cephalic (lat) and basilic (med) veins

what is the most common site for intravenous lines

• medial cubital vein

brachial artery gives what branches

ulnar collateral a arteries

brachial artery descending into cubital fossa bifurcates into what

radial and ulnar artery

what dermatomes landmarks are present in the cubital fossa?

C5 lateral aspect of cubital fossa

T1 medial aspect of cubital fossa

peripheral nerves that provide sensory information to cubital fossa

• medial cutaneous n of the arm

• medial cutaneous nerve of the forearm

• posterior cutaneous n of the forearm

the radial nerve tracels through what

trinangular interval and runs along radial groove of humerus (with profunda brachii

• supplies all muscles of posterior compartmenr of the arm and forearm

• pierces lateral intermuscular septum and enters cubital fossa