DAANCE Exam Questions & Answers Already Passed!!

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 brainSinoatrial 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 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 synapsesyncope - 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 waveform that represents repolarization of the ventricles Tachycardia - Answer-fast heart rate terminal button - Answer-the bulge at the end of the nerve that touches the next nerve in the never pathway at a synapse third degree AV block - Answer-an 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 - Answer-formation of a blood clot in a blood vessel, usually a vein Tidal Volume - Answer-the amount of gas that is inspired or expired during one respiratory cycle titrate - Answer-to give a small quantity of a drug and assess its effects before giving additional drugs trachea - Answer-windpipe tracheostomy - Answer-the surgical creation of an opening into the trachea through the neck