Question

what structures limit the extension of the forearm?
answer
the trochlea and capitulum
the medial and lateral epicondyles
the olecranon and the olecrandy fossa
the coronoid process and the coronoid fossa
i dont know yet

Explanation:

When the forearm extends, the olecranon process of the ulna fits into the olecranon fossa of the humerus, which limits further extension. The other options do not directly limit forearm extension in the same way.

Answer:

The olecranon and the olecranon fossa