Which of the following serves as an important visual landmark when performing endotracheal intubation under direct visualization?

Removal of the native heart and replacement with a donor heart is indicated for patients with ______ cardiac disease

A. end-stage B. chronic

The metric equivalent of 0.001 gram is ________.

A. 0.001 kilogram B. 1 milligram C. 1 centigram D. 1 microgram E. 1 decigram