DAANCE Exam Questions With Verified Solutions

DAANCE Exam Questions With Verified Solutions Wave of Depolarization - ANS an advancing wave of charge reversal as the nerve impulse advance along the neuron Wakefulness system - ANS consists of a central core in the brainstem with neurons that radiate to the cortex Vomiting Center - ANS the center in the brainstem that induces vomiting Vital Centers - ANS centers in the brainstem that control such physiologic processes as blood pressure and pulse, depth and rate of respiration Vestibular nerve - ANS part of the eighth cranial nerve that is connect with equilibrium and hearing Venule - ANS any of the small vessels that collect blood from networks of capillaries and join them to form veins Ventricular tachycardia - ANS a cardiac dysrhythmia in which there is rapid firing of an ectopic focus in the ventricles and a wide QRS complex with no p waves Ventricular rhythms - ANS a cardiac dysrhythmia in which the pacemaker is in the ventricles rather than in the SA node or atria Ventricular focus - ANS a displace point of origin for a dysrhythmia that is in the ventricles Ventricular fibrillation - ANS arrhythmia characterized by contractions of ventricle muscle fibers due to rapid excitation of myocardial fibers without coordinated contraction of the ventricle Sensory nerve - ANS a nerve of the peripheral nervous system that conducts impulses from a sense organ to the spinal cord or brain Sinoatrial node - ANS a microscopic collection of heart muscle fibers where cardiac rhythm originates; also called the pacemaker of the heart sinus arrhythmia - ANS a cardiac dysrhythmia similar to normal sinus rhythm, but withslight variation in rate with inspiration and expiration sinus bradycardia - ANS cardiac dysrhythmia similar to normal sinus rhythm except for a slower rate of less than 60 bpm sinus rhythms - ANS cardiac rhythms in which the pacemaker is the sinoatrial node sinus tachycardia - ANS dysrhythmia similar to normal sinus rhythm except for an increase in rate of greater than 100 bpm but less than 150 bpm stroke volume - ANS the amount of blood ejected from a ventricle during each beat of the heart subcutaneous - ANS beneath the skin superior vena cava - ANS the venous trunk that drains blood from the head, neck, upper extremities, and chest and empties into the right atrium of the heart