DAANCE Exam Questions And Answers (Verified And Updated)

DAANCE Exam Questions And Answers (Verified And Updated) Wave of Depolarization - answeran advancing wave of charge reversal as the nerve impulse advance a long the neuron Wakefullness system - answerconsists of a central core in the brainstem with neurons that radiate to the cortex Vomiting Center - answerthe center in the brainstem that induces vomiting Vital Centers - answercenters in the brainstem that control such physiologic processes as blood pressure and pulse, depth and rate of respiration Vestibular nerve - answerpart of the eighth cranial nerve that is connect with equilibrium and hearing Venule - answerany of the small vessels that collect blood from networks of capillaries and join them to form veins Ventricular tachycardia - answera cardia dsrhythmia in which there is rapid firing of an ectopic focus in the ventricles and a wide QRS complex with no p waves Ventricular rhythms - answera cardia dsrhythmia in which the pacemaker is in the ventricles rather than in the SA node or atria Ventricular focus - answera displace point of origin for a dysrhythmia that is in the ventricles Ventricular fibrillation - answerarrhythmia characterized by contractions of ventricle muscle fibers due to rapid excitation of myocardial fibers without coordinated contraction of the ventricle Sensory nerve - answera nerve of the peripheral nervous system that conducts impulses from a sense organ to the spinal cord or brain Sinoatrial node - answera microscopic collection of heart muscle fibers where cardiac rhythm originates; also called the pacemaker of the heart sinus arrhythmia - answera cardiac dysrhythmia similar to normal sinus rhythm, but withslight variation in rate with inspiration and expiration sinus bradycardia - answercardiac dysrhythmia similar to normal sinus rhythm except for a slower rate of less than 60 bpm sinus rhythms - answercardiac rhythms in which the pacemaker is the sinoatrial node sinus tachycardia - answerdysrhythmia similar to normal sinus rhythm except for an increase in rate of greater than 100 bpm but less than 150 bpm stroke volume - answerthe amount of blood ejected from a ventricle during each beat of the heart subcutaneous - answerbeneath the skin superior vena cava - answerthe venous trunk that drains blood from the head, neck, upper extremities, and chest and empties into the right atrium of the heart supraventricular foci - answercentral points of origin of dsrhythmias, which are located above the level of the ventricles in the atria sympathommimetic - answerhaving activity that mimics the effects of the sympathetic nervous system, epinephrine synapse - answerthe junction between two neurons where impulses are transmitted from one neuron to another synaptic cleft - answerthe gap between two nerves where they meet at a synapse syncope - answerfainting synergistic - answerthe phenomenon that exists when two drugs are administered together, and the combined effect is greater than the sum of its parts systolic - answerpertaining to the phase of the heart's pumping action when the ventricles contract, forcing blood either to the lungs or peripheral circulation T wave - answerthe EKG waveform that represents repolarization of the ventricles Tachycardia - answerfast heart rate terminal button - answerthe bulge at the end of the nerve that touches the next nerve in the never pathway at a synapse third degree AV block - answeran atrioventricular block in which the impulse does not conduct from the atria to the ventricles and there is independent contraction of the atria and ventricles Thrombosis - answerformation of a blood clot in a blood vessel, usually a vein