Flashcards in 1. The cubital fossa and cubital tunnel Deck (10)
What is the cubital tunnel?
- space of dorsal medial elbow through which ulnar nerve passes to enter forearm
Which structures form the cubital tunnel?
- formed by tendinous arch joining humeral and ulnar heads of flexor carpi ulnaris
What is cubital tunnel syndrome?
compression of the ulnar nerve at the elbow
what is the cubital fossa?
area of transition between arm and forearm
what are the borders of the cubital fossa?
- superior: imaginary line connecting lateral and medial epicondyles of humerus
- lateral: medial border of brachioradialis
- medial: lateral border of pronator teres
- floor: brachialis (proximally) and supinator (distally)
- roof: skin, superficial fascia and deep fascia reinforced by bicipital aponeurosis
Describe the contents of the cubital fossa (lateral to medial).
1. radial n.
2. biceps brachii tendon
3. brachial artery and commencement of its terminal branches, the radial and ulnar arteries (usually bifurcates near apex of fossa)
4. median n.
Which structures are found in the subcutaneous tissue overlying the cubital fossa?
- median cubital vein
- medial and lateral cutaneous nerves of forearm
Which clinical intervention can be performed at the cubital fossa region?
venepuncture (median cubital vein)
Where would one palpate for the brachial pulse?
Immediately medial to biceps tendon in cubital fossa