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The T-wave on a cardiac monitor tracing is evidence of what change in polarization? - ✔✔Repolarization
of the ventricles
What anatomical structure located at the top of the larynx closes the airway and prevents foreign bodies
from entering the trachea - ✔✔Epiglottis
Which of the following structures is most likely to cause obstruction of the airway when an anesthetized
patient is lying in a supine position - ✔✔Tongue
Blood is pumped to the lungs from the heart through which of the following vessels - ✔✔Pulmonary
artery
Which of the following is the normal sequence for the flow of blood through the heart and the lungs -
✔✔Right atrium right ventricle pulmonary artery lungs pulmonary vein left atrium left ventricle aorta
The small sac like structure located at the end of the respiratory tract in which oxygen and carbon
dioxide are exchanged are called - ✔✔Alveoli
Which of the following structures may be involved in a patient who has an upper respiratory infection -
✔✔Nose sinuses pharynx
The soft tissue valve that covers the larynx and allows food to enter the esophagus is called the -
✔✔Epiglottis
An artery located in the neck that is readily palpated when looking for a patients pulse - ✔✔Common
carotid
The central nervous system consist of - ✔✔Brain and spinal cord