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present active indicative first-person plural of φιλέω (pai1p)

Killer T cells, which kill virus-invaded body cells, are also called ________.

Active immunity to tetanus, whooping cough, and polio can be artificially acquired when we receive ________.

The brachial vein ________.

The sinoatrial node, located in the right atrium of the heart, is often called the ________.

Tunica ________, the middle layer of a typical blood vessel, contains smooth muscle and elastic fibers.

The volume of blood pumped out of a ventricle with each heartbeat is known as ________.

Large blood vessels that carry blood away from the heart are called ________.

Select the pathway along which images received by the retina of the eye will travel into the brain ________.

Faulty heart valves cause a disorder called _____________.