Radial fossa
Encyclopedia
Above the front part of the capitulum
Capitulum of the humerus
In human anatomy of the arm, the lateral portion of the articular surface of the humerus consists of a smooth, rounded eminence, named the capitulum of the humerus....

 is a slight depression, the radial fossa, which receives the anterior border of the head of the radius, when the forearm
Forearm
-See also:*Forearm flexors*Forearm muscles...

is flexed.
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