Which one of the following definitions is NOT true?

The pathophysiology of ________ is one in which the pericardial sac fills with blood to the point where the chambers of the heart no longer fill adequately, usually secondary to trauma.  

A 65-year-old man was doing some work on his roof when he lost his footing and fell to the ground, approximately 15 feet. He is unconscious but his respirations are normal. You note an obviously angulated left leg. You are more concerned about a possible head injury. Which of the following would indicate a possible head injury?  

Which portions of the spine are the most vulnerable to injury?

The part of the skeleton that is made up from the skull and spinal column is called the:

Your patient has been injured by a fall down a flight of steps. He is alert and oriented but complains of back and neck pain. You spinal immobilize him on a long spine board with a cervical collar on his neck as a precaution because you know that the:

A 65-year-old man was doing some work on his roof when he lost his footing and fell to the ground, approximately 15 feet. He is unconscious but his respirations are normal. You note an obviously angulated left leg. You are more concerned about a possible head injury. Which of the following would indicate a possible head injury?  

The part of the skeleton that is made up from the skull and spinal column is called the:

Your patient has had his throat slashed during a robbery attempt. You are concerned since it is apparent that the vessels in his neck have been lacerated. A breach in which of the following vessels would be most likely to lead to an air embolism?  

Which of the following types of snake is NOT a pit viper?