Which hormone produced by the thymus plays a key role in the maintenance of normal immune defenses?

Which of the following terms is not a "mechanism of injury"?

a. Blunt injury b. Rotational injury c. Stabbing injury d. Crushing injury

When placing a person in anatomic position using the principles of Pretzels and Jams, are the head, shoulders, and buttocks put into a straight line?

a. Yes b. No