Question 1
Following balloon angioplasty, a small wire cylinder known as a ____ may be inserted to keep the artery open.
◦ shunt
◦ shaft
◦ stent
◦ pipette
◦ bushing
Question 2
Heart excitation originates in the
◦ atrioventricular node.
◦ intercalated disk.
◦ sinoatrial node.
◦ pericardium.
◦ endocardium.