DAANCE Exam Already Graded A+
Medical Terminology and Definitions
1. Wave of Depolarization: ️ An advancing wave of charge reversal as the nerve impulse advances
along the neuron.
2. Wakefulness System: ️ Consists of a central core in the brainstem with neurons that radiate to the
cor...
DAANCE Exam Already Graded A+
Medical Terminology and Definitions
1. Wave of Depolarization: ✔️ An advancing wave of charge reversal as the nerve impulse advances
along the neuron.
2. Wakefulness System: ✔️ Consists of a central core in the brainstem with neurons that radiate to the
cortex.
3. Vomiting Center: ✔️ The center in the brainstem that induces vomiting.
4. Vital Centers: ✔️ Centers in the brainstem that control physiological processes such as blood
pressure and pulse and the depth and rate of respiration.
5. Vestibular Nerve: ✔️ Part of the eighth cranial nerve that is connected with equilibrium and hearing.
6. Venule: ✔️ Any of the small vessels that collect blood from networks of capillaries and join them to
form veins.
7. Ventricular Tachycardia: ✔️ A cardiac dysrhythmia in which there is rapid firing of an ectopic focus in
the ventricles, characterized by a wide QRS complex with no P waves.
8. Ventricular Rhythms: ✔️ A cardiac dysrhythmia in which the pacemaker is in the ventricles rather
than in the SA node or atria.
9. Ventricular Focus: ✔️ A displaced point of origin for a dysrhythmia that is in the ventricles.
10. Ventricular Fibrillation: ✔️ Arrhythmia characterized by contractions of ventricle muscle fibers due
to rapid excitation of myocardial fibers without coordinated contraction of the ventricle.
,11. Sensory Nerve: ✔️ A nerve of the peripheral nervous system that conducts impulses from a sense
organ to the spinal cord or brain.
12. Sinoatrial Node: ✔️ A microscopic collection of heart muscle fibers where cardiac rhythm
originates; also called the pacemaker of the heart.
13. Sinus Arrhythmia: ✔️ A cardiac dysrhythmia similar to normal sinus rhythm, with slight variation in
rate with inspiration and expiration.
14. Sinus Bradycardia: ✔️ Cardiac dysrhythmia similar to normal sinus rhythm except for a slower rate
of less than 60 bpm.
15. Sinus Rhythms: ✔️ Cardiac rhythms in which the pacemaker is the sinoatrial node.
16. Sinus Tachycardia: ✔️ Dysrhythmia similar to normal sinus rhythm except for an increase in rate of
greater than 100 bpm but less than 150 bpm.
17. Stroke Volume: ✔️ The amount of blood ejected from a ventricle during each beat of the heart.
18. Subcutaneous: ✔️ Beneath the skin.
19. Superior Vena Cava: ✔️ The venous trunk that drains blood from the head, neck, upper extremities,
and chest and empties into the right atrium of the heart.
20. Supraventricular Foci: ✔️ Central points of origin of dysrhythmias, located above the level of the
ventricles in the atria.
21. Sympathomimetic: ✔️ Having activity that mimics the effects of the sympathetic nervous system,
such as epinephrine.
, 22. Synapse: ✔️ The junction between two neurons where impulses are transmitted from one neuron
to another.
23. Synaptic Cleft: ✔️ The gap between two nerves where they meet at a synapse.
24. Syncope: ✔️ Fainting.
25. Synergistic: ✔️ The phenomenon that exists when two drugs are administered together, and the
combined effect is greater than the sum of its parts.
26. Systolic: ✔️ Pertaining to the phase of the heart's pumping action when the ventricles contract,
forcing blood either to the lungs or peripheral circulation.
27. T Wave: ✔️ The EKG waveform that represents repolarization of the ventricles.
28. Tachycardia: ✔️ Fast heart rate.
29. Terminal Button: ✔️ The bulge at the end of a nerve that touches the next nerve in the pathway at
a synapse.
30. Third Degree AV Block: ✔️ An atrioventricular block in which the impulse does not conduct from
the atria to the ventricles, resulting in independent contraction of the atria and ventricles.
31. Thrombosis: ✔️ Formation of a blood clot in a blood vessel, usually a vein.
32. Tidal Volume: ✔️ The amount of gas that is inspired or expired during one respiratory cycle.
33. Titrate: ✔️ To give a small quantity of a drug and assess its effects before giving additional doses.
34. Trachea: ✔️ Windpipe.
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