Question

right atrium receive the deoxygenated blood from upper p---------------------- best answer will be marked as brainlest

Answer 1

Answer:

From the systemic circulation through the superior vena cava and inferior vena cava.

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Answer 2

Answer:

The right atrium receives and holds deoxygenated blood from the superior vena cava, inferior vena cava, anterior cardiac veins and smallest cardiac veins and the coronary sinus, which it then sends down to the right ventricle (through the tricuspid valve), which in turn sends it to the pulmonary artery for pulmonary