Examples of olecranon

• The mid-arm circumference was taken from the left arm from the mid-point between the tip of the acromion process and the olecranon process.

• Proximally, the ulna has a bony process, the olecranon process, a hook-like structure that fits into the olecranon fossa of the humerus.

• The compact layer is continued onto the back of the olecranon as a plate of close spongy bone with lamell parallel.

• A second incision is made to expose the triceps insertion and the triceps is dissected from its insertion on the olecranon.

• In the lower arm the robust ulna has a well-developed olecranon process.

• It is directly inferior to the coronoid fossa anteriorly and to the olecranon fossa posteriorly.

• They are usually subcutaneous especially over bony prominences such as the tip of the elbow or olecranon or over the finger knuckles.

• The right ulna is small and slender, is missing an olecranon, and has a well-marked ridge.

• A hole is then drilled in the olecranon and a gauge wire is then looped in the hole.

• Olecranon is the bony point of the elbow.

• The forelimbs are robust, with enlarged olecranon and other processes associated with strong muscle attachment.

• It also prevents the elbow joint capsule being pinched in the olecranon fossa during extension of the elbow.

• This is because in early life, olecranon is thick, short and much stronger than the lower extremity of the humerus.

• It is also distinguished by the presence of a trochlear-form ulnar articulation and a distal olecranon fossa.

• A unique feature is a lack of the olecranon process on the ulna.