@nursebrace: What prevents blood from flowing BACK into the left atrium? 👀Comment your answer ⬇️ (Tag someone who keeps mixing up tricuspid & mitral 😅) Save this for TEAS 7 Science review 💾 DM “TEAS” for full A&P practice with rationales 🔥 #TEAS7 #practicetest #PreNursing #FutureNurse #ATIteas