The Cubital Fossa
Is a traingular depression on the anterior aspect of the elbow , filled with a variable amount of fat .
It has three boundaries ( superiorly , medially , laterally )
Boundaries of the cubital fossa :
1- Superiorly ( the base )
is formed by an imaginary line connecting between medial and lateral epicondyle of humerus .
2- Medially
is formed by a mass of flexor muscles lf the forearm , most superficially is the pronator teres muscle .
3- Laterally
is formed by a mass of extensor muscles of the forearm , most superficially is the brachioradialis muscle .
The floor of the fossa is formed by brachialis muscle medially , and supinator muscle of arm and forearm .
The roof of the cubital fossa is formed by deep fascia , bicipital aponeurosis , and the skin .
Contents of the Cubital fossa :
From the medial to the lateral side .
- The median nerve .
- Terminal part of brachial artery ( the ulnar and radial arteries ) .
- The tendon of biceps muscle .
- The radial nerve .
Figure 1
Sources :
- Snell anatomical book ( 476 - 477 ) .
- Grants anatomical book ( 546 - 547 - 548 ) .
- Atlas of Human Anatomy, Sixth Edition- Frank H. Netter, M.D ( 454 ) .
Written by Mubark.A.F
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