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13. What causes a heartbeat?………… A. Stretching of the atrium and ventricle muscles B. Closing and opening of AV and SV Valves C. Oxygenated blood per minute D. The number of tim…

13. What causes a heartbeat?………… A. Stretching of the atrium and ventricle muscles B. Closing and opening of AV and SV Valves C. Oxygenated blood per minute D. The number of tim…
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5 votes
13. What causes a heartbeat?…………

A. Stretching of the atrium and ventricle muscles
B. Closing and opening of AV and SV Valves
C. Oxygenated blood
per minute
D. The number of times your heart beats

asked
User Cloudviz
by
7.9k points

2 Answers

3 votes

Answer:

A

Step-by-step explanation:

I think i remember that from heatlth.

answered
User Haywood Slap
by
8.4k points
4 votes

Answer:

A

Step-by-step explanation:

Stretching of the atrium and ventricle muscles

answered
User Ostrichofevil
by
8.5k points
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