The nurse should suspect of a fractured jaw.
The crepitus is a common sign of bone fracture and it's heard when the fractured surfaces of two broken bones rub together.
Also If there is a severe jaw fracture, the patient might experience limited ability to move the jaw or be unable to move it at all.
Biology is the study of natural science (nature) and it is important to humans cause we learn about it
<span>Membrane structure and function: The plasma membrane, also known as the cell surface membrane or plasma-lemma, is the boundary of the cell. It regulates the movement of materials into and out of the cell and facilitates electrical signaling.</span>