the.com/right atrium
The heart's chill mailroom, taking in used blood nobody respects yet.
means The upper-right chamber of the heart that receives deoxygenated blood returning from the body before passing it to the right ventricle.
from "Atrium" is straight Latin for the entry hall of a Roman house — the open front room where visitors and the household's daily traffic first arrived. Anatomists borrowed the word directly for the heart's receiving chambers because blood, like a guest, enters there first before moving deeper into the house. "Right" is just Old English/Germanic for the side opposite left, describing its position in the body (which, confusingly, appears on the left of an anatomy diagram facing you).
- pacemaker location
- sinoatrial node lives here, sets your whole beat
- job
- collects deoxygenated blood from body before passing it on
- pressure level
- lowest pressure chamber, basically the heart's waiting room
- neighbor
- shares a wall with left atrium, thinner than you'd think