DAANCE Exam Questions and Answers 100% Correct

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 expiration sinus 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