Examlex
A(n) __________ is an ectopic ventricular beat that occurs without a preceding P wave.
Medulla Oblongata
Hindbrain region that influences breathing and controls reflexes such as coughing and vomiting.
Pacemaker
A medical device that regulates the heartbeat by sending electrical pulses to stimulate the heart when it is beating too slowly or irregularly.
Inhalation
The act of drawing air or other substances into the lungs, a critical component of the respiratory process.
Gas Exchange
The process by which organisms exchange gases (such as oxygen and carbon dioxide) with their environment, crucial for respiration and photosynthesis.
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