CHAPTER -7

CUBITAL FOSSA

It is an intermuscular space in front of elbow.

Shape: triangular

Boundaries:

Medially – lateral border of pronator teres

Laterally – medial border of brachioradialis

Apex – meeting of the two muscles (distally)

Base – imaginary line joining both epicondyles of humerus.

Floor – brachialis in upper part and superior in lower part.

Root – 1) bicipital aponeurosis

       2) Superficial to bicipital aponeurosis, median cubital vein, medial and

            lateral cutaneous nerves of forearm.

D:\Chitra Scans\Fig002 a.jpg

FOR THE DISSECTION  OF CUBITAL FOSSA, WATCH THIS VIDEO:

https://youtu.be/NBnUNSbwL4w


Contents of the cubital fossa: (from lateral to medial side)

Radial nerve

Tendon of biceps

Brachial artery and its terminal branches – Radial and ulnar artery.

Median nerve



Radial nerve:

Opposite the lateral epicondyle – the radial nerve divides into deep and superficial branches.

Tendon of biceps:

It is inserted in the posterior part of radial tuberosity and before insertion, the tendon gives the bicipital aponeurosis.

Brachial artery: 

Opposite the neck of radius, the brachial artery divides into radial and ulnar arteries . The radial artery gives the branch – radial recurrent artery in the fossa.

The ulnar artery gives the following branches – anterior ulnar recurrent artery, posterior ulnar recurrent artery and common interosseous artery. 

The radial artery leaves through the apex of cubital fossa and the ulnar artery leaves deep to the deep head of pronator teres.

Median nerve :

It gives a branch to the pronator teres and leaves the fossa between the two heads of pronator teres.

FOR QUESTIONS IN THE CUBITAL FOSSA IN THE PRACTICAL EXAMS, WATCH THIS VIDEO: https://youtu.be/c8JjIHiYiJY

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