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Cubital Fossa
Definition and extent
o The cubital fossa is the region of the upper limb in front of the elbow joint.
It is a triangular area with the following boundaries:
o laterally, brachioradialis muscle
o medially, pronator teres muscle
o superiorly, an imaginary line from the medial and lateral epicondyles
Contents
This circumscribed region contains
o brachial artery
o median cubital vein
o median nerve.
o Their relationships with each other is important clinically since the median cubital vein is most often used for intravenous injections. Missed injections could be dangerous to the underlying structures.
superficial to deep the layers are
venous layer
1 cephalic vein
2 basilic vein
3 median cubital vein
Artery-nerve layer
1 brachial artery
2 median nerve
Aponeurotic layer
1 bicipital aponeurosis
2 biceps tendon
Muscular floor
1 supinator
2 brachialis
3 biceps tendon
Applied anatomy
This site is a frequent site of injections. avoid nerves
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Topic - Index - Anatomy - Gastrointestinal System
