This muscle raises and wrinkles the skin of the chin and pushes up the lower lip

In a coup-contrecoup injury:

a. The brain is injured at the site of impact and on the opposite side b. The brain is injured diffusely with no specific focal lesion

Which of the following may be necessary to complement a cross-table lateral c-spine when all seven vertebrae are not visualized?

try the opposite cross table lateral c-spine attempt a swimmer's lateral there is nothing additional; it is patient related send the patient to MRI