The heart contracts twice for every heartbeat. One contraction is the atrial contraction while the other is the ventricular contraction. During ventricular contraction, which two valves of the heart open?
Cardiovascular System.

Quiz
•
Biology, Science
•
9th - 11th Grade
•
Hard
Joe Hawthorne
Used 3+ times
FREE Resource
5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pulmonary and aortic valves
Aortic and mitral valves
Aortic and tricuspid valves
Pulmonary and tricuspid valves
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The arterioles at the surface of her skin can vasoconstrict so more heat leaves her body.
The arterioles at the surface of her skin can vasoconstrict so less heat leaves her body.
The arterioles at the surface of her skin can vasodilate so less heat leaves her body.
The arterioles at the surface of her skin can vasodilate so more heat leaves her body.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Heart rate is described as the number of heart beats per minute. The normal human heart rate ranges from 60-100 beats per minute (bpm). Lance Armstrong (pictured above) had a resting heart rate of 32 beats per minute. While racing, his heart rate would increase to 1.6 beats per second. How many more bpm was his heart rate while racing than while resting?
64bpm
32bpm
85bpm
46bpm
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Select the correct names for Structure B.
Aortic Valve.
Tricuspid Valve.
Pulmonary Valve.
Septum.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Letter C represents a structure found in which type of circulation.
Pulmonary.
Systemic.
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