There are four chambers in the human heart, considering the chamber that is responsible for receiving the deoxygenated blood from the body, which of the following structures can be found in this chamber?
a. Opening of the superior vena cava
b. All of the answers are correct.
c. Papillary muscles.
d. Opening of the superior vena cava + Papillary muscles
e. Pulmonary veins openings



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