The left atrium receives blood and high oxygen levels from the lungs.
The answer is “unclear, you must include a question for these numbers”
Answer:
your answer would be sinus node (also called the sinoatrial node, or SA node).
Explanation:
Common illnesses<span> you can use antibiotics for</span><span> are </span>urinary tract infections<span>, </span>strep throat<span>, and some </span>pneumonia<span>.</span>
