Which ligament is described as the impression for costoclavicular ligament?

Which ligament is described as the impression for costoclavicular ligament?

• A. Pressed in part on a bone for the ligament between ribs and collarbone
• B. Costoclavicular ligament
• C. Dorsal ulnocarpal ligament
• D. Joints between toe bones

Answer: (B)

The idea tested is how ligaments leave marks on bones where they attach. An impression for a ligament is the specific area on a bone that shows where that ligament attaches. For the costoclavicular ligament, the attachment is between the first rib (costal) and the clavicle, so the impression would be the site associated with that ligament’s attachment. The term that names this ligament itself—the one that connects the first rib to the clavicle—is the costoclavicular ligament, which is why it is the correct choice. Other options point to ligaments or joints in unrelated regions (wrist or toes) and do not describe the attachment between ribs and clavicle.

The idea tested is how ligaments leave marks on bones where they attach. An impression for a ligament is the specific area on a bone that shows where that ligament attaches. For the costoclavicular ligament, the attachment is between the first rib (costal) and the clavicle, so the impression would be the site associated with that ligament’s attachment. The term that names this ligament itself—the one that connects the first rib to the clavicle—is the costoclavicular ligament, which is why it is the correct choice. Other options point to ligaments or joints in unrelated regions (wrist or toes) and do not describe the attachment between ribs and clavicle.