A patient in the emergency room with a road traffic accident has retroperitoneal bleed. Trauma to which of the following structures is most likely the cause of the bleed

Anatomy

A patient in the emergency room with a road traffic accident has retroperitoneal bleed. Trauma to which of the following structures is most likely the cause of the bleed

The action of digastric muscle is:

Which of the following vessels supply the anal canal?

All of the following muscles are elevators of the mandible EXCEPT: