True or false: SDF and DDF check ligaments prevent over extension of carpus and fetlock joints.

True or false: SDF and DDF check ligaments prevent over extension of carpus and fetlock joints.

• A. True
• B. False
• C. Cannot be determined
• D. Partially true

Answer: (B)

The main idea is that the SDF and DDF check ligaments control how far the flexor tendons can pull on the joints. They anchor the superficial and deep digital flexor tendons to bones, so when the limb flexes, these ligaments keep the joints from bending too much. In other words, they limit flexion (over-flexion) of the carpus and fetlock, not extension. Therefore the statement is false because preventing overextension is not the role of these check ligaments.

The main idea is that the SDF and DDF check ligaments control how far the flexor tendons can pull on the joints. They anchor the superficial and deep digital flexor tendons to bones, so when the limb flexes, these ligaments keep the joints from bending too much. In other words, they limit flexion (over-flexion) of the carpus and fetlock, not extension. Therefore the statement is false because preventing overextension is not the role of these check ligaments.