DAANCE Exam Questions And Answers

Wave of Depolarization - Answer an advancing wave of charge reversal as the nerve impulse advance a long the neuron Wakefullness system - Answer consists of a central core in the brainstem with neurons that radiate to the cortex Vomiting Center - Answer the center in the brainstem that induces vomiting Vital Centers - Answer centers in the brainstem that control such physiologic processes as blood pressure and pulse, depth and rate of respiration Vestibular nerve - Answer part of the eighth cranial nerve that is connect with equilibrium and hearing Venule - Answer any of the small vessels that collect blood from networks of capillaries and join them to form veins Ventricular tachycardia - Answer a 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 - Answer a cardia dsrhythmia in which the pacemaker is in the ventricles rather than in the SA node or atria Ventricular focus - Answer a displace point of origin for a dysrhythmia that is in the ventricles Ventricular fibrillation - Answer arrhythmia characterized by contractions of ventricle muscle fibers due to rapid excitation of myocardial fibers without coordinated contraction of the ventricle Sensory nerve - Answer a nerve of the peripheral nervous system that conducts impulses from a sense organ to the spinal cord or brain Sinoatrial node - Answer a microscopic collection of heart muscle fibers where cardiac rhythm originates; also called the pacemaker of the heart sinus arrhythmia - Answer a cardiac dysrhythmia similar to normal sinus rhythm, but withslight variation in rate with inspiration and expirationsinus bradycardia - Answer cardiac dysrhythmia similar to normal sinus rhythm except for a slower rate of less than 60 bpm sinus rhythms - Answer cardiac rhythms in which the pacemaker is the sinoatrial node sinus tachycardia - Answer dysrhythmia similar to normal sinus rhythm except for an increase in rate of greater than 100 bpm but less than 150 bpm stroke volume - Answer the amount of blood ejected from a ventricle during each beat of the heart subcutaneous - Answer beneath the skin superior vena cava - Answer the venous trunk that drains blood from the head, neck, upper extremities, and chest and empties into the right atrium of the heart supraventricular foci - Answer central points of origin of dsrhythmias, which are located above the level of the ventricles in the atria sympathommimetic - Answer having activity that mimics the effects of the sympathetic nervous system, epinephrine synapse - Answer the junction between two neurons where impulses are transmitted from one neuron to another synaptic cleft - Answer the gap between two nerves where they meet at a synapse syncope - Answer fainting synergistic - Answer the phenomenon that exists when two drugs are administered together, and the combined effect is greater than the sum of its parts systolic - Answer pertaining to the phase of the heart's pumping action when the ventricles contract, forcing blood either to the lungs or peripheral circulation T wave - Answer the EKG