The channel between the main pulmonary artery and the aorta in the fetus is the _______________ _______________

All the following could be classified as oral reactive fibrous hyperplasia except:

a. Traumatic fibroma b. Peripheral fibroma c. Fibromatosis d. Generalized gingival hyperplasia e. Denture-induced hyperplasia

You receive a call to a restaurant where a 34 year old man is experiencing shortness of breath. When you arrive you immediately note that the man has urticaria on his face and arms. He is in obvious respiratory distress, but is awake and alert. Epinephrine possesses which of the following effects when it is used to treat anaphylaxis?

A. As a vasodilator, it increases the blood pressure. B. As a vasoconstrictor, it lowers the blood pressure C. As a bronchodilator, it facilitates adequate breathing D. As a bronchoconstrictor, it inhibits the release of chemicals that cause the reaction