Category: V

A follicle containing a cavity; a mature ovarian (graafian) follicle.  

One of the false vocal cords, superior to the true vocal cords.  

The point at which divergent rays would intersect if extended backward.  

Ventricular contractions of the heart at 250 beats per minute, creating a high-amplitude, sawtooth pattern on the surface electrocardiogram. The rhythm is lethal unless immediate life support and resuscitation are provided.  

An abnormal connection between the urinary bladder and the uterus.  

A wire apparatus inserted through a catheter into the inferior vena cava to prevent pulmonary emboli.  

A treatable, but lethal dysrhythmia present in nearly half of all cases of cardiac arrest. It is marked on the electrocardiogram by rapid, chaotic nonrepetitive waveforms; and clinically by the absence of effective circulation of blood (pulselessness). Rapid defibrillation (applying unsynchronized electrical shocks to the heart) is the key to treatment. Basic measures, such as…

The ability to voluntarily cause the globe of the eye to protrude by as much as 10 mm (0.4 in). This is not harmful to the eye or visual acuity.  

Single or repeated ventricular beats that arise from pacemakers in the ventricular muscle when beats from pacemakers in the sinoatrial or atrioventricular nodes fail to appear.  

An ectopic heartbeat that occurs when the normal rhythm of the heart has been stopped or inhibited by stimulation of the vagus nerve.