Asked by Sabrina Primosch on Jul 20, 2024
Verified
Which of the following will increase the heart rate?
A) A rise in pH
B) An increase in the level of carbon dioxide in the blood
C) An increase in the level of blood oxygen
D) An increase in blood pressure
E) A decrease in the level of carbon dioxide in the blood
Carbon Dioxide
An invisible, unscented gas that results from the burning of carbon and organic compounds, as well as from breathing processes. It is a naturally occurring component of the air, utilized by plants in photosynthesis.
Heart Rate
The quantity of heart pulses within a given time frame, usually measured in beats per minute (bpm).
- Familiarize oneself with the physiological factors influencing heart rate and blood pressure.
Verified Answer
AC
Andrea CaballeroJul 21, 2024
Final Answer :
B
Explanation :
An increase in the level of carbon dioxide in the blood stimulates chemoreceptors, which in turn signal the cardiac center in the brain to increase heart rate to expel more CO2.
Learning Objectives
- Familiarize oneself with the physiological factors influencing heart rate and blood pressure.