Medical Quiz
★ Circulatory / Respiratory Quiz

Which structure initiates a heartbeat?

A. AV node

B. SA node

C. left ventricle

D. left atrium

E. right ventricle

Select your answer:
         


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Other quiz:

Nervous System › View

What connects your appendages to your spinal cord?

A. Voluntary Muscles

B. Involuntary Muscles

C. Spinal Cord

D. Nerves

Transportation and Excretion › View

arteries carried which blood

A. blood

B. oxygenated blood

C. deoxygenated blood

D. wbc

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