Irene Gold Assoc. NBCE Board Review Part 1

Irene Gold Assoc. NBCE Board Review Part 1 with correct answers 100% guaranteed A+ score. Blood from the upper extremity is brought to the heart via _________, while blood from the lower extremity is brought to the heart via _________.*What is the exception? - correct answers.- Superior Vena Cava - Inferior Vena Cava *Azygous vein drains lumbars into SVC *_____% of blood from the Right Atrium passively flows into right ventricle. ____% needs arterial contraction. - correct answers.-80 -20 The AV nodal delay ensures that - correct atria contract and empty their contents into the ventricles prior to ventricular systole At the end of diastole, the __________ valve closes creating the ______ sound with ____________ contraction. This happens in the ______ - correct answers.- tricuspid - End of Diastole (120ml) -Isovolumetric contraction - Right ventricle ____-____ enough pressure builds in the right ventricle to blow open the ______ and _____ valves - correct answers.-Mid-systole -pulmonic -semilunar pulmonary artery - correct answers.Carries deoxygentated blood from the heart to the lungs The Bohr effect describes - correct answers.How blood is oxygenized (4 O2/molecule of hemoglobin) Blood exits lung via _____ Pulmonary veins into ____ ______. - correct answers.- 4 - Left artrium Pulmonary veins carry _______ blood. Also _____ ____ in fetus. - correct answers.- oxygenated blood - Umbilical vein ____% of blood passively flows into the _____ _____. Other 20% needs ______ delay - correct answers.- 80 - Left ventricle - P-Wave-AV nodal delay Mitral Valve closes — isovolumetric contraction. — Midsystole — aortic valves open 70ml blood rushes into aorta — Aortic valves closes (isovolumetric relaxation) - correct Ventricle End Diastolic Volume (EDV) - correct e of blood in each ventricle at end of ventricular diastole (120ML) end systolic volume - correct e of blood remaining in each ventricle after systole (50ml) SV - correct answers.80 ml CO - correct answers.SV x HR P-Wave - correct l depolarization (contraction). Starts at the SA node in the crista Terminalis of the right atrium P-R Interval - correct answers.AV nodal delay R - correct answers.Isovolumetric contraction. Impulse released from AV node down bundle of His into Purkinje fibers. QRS - correct icular depolarization and atrial repolarization T Wave - correct icular repolarization U wave represents - correct arization of the purkinje fibers and bundle of his S-T segment - correct lumetric relaxation Inverted T / Altered S-T segment - correct rdial infarction 1st heart sound - correct answers.AV valves closed during isometric contraction 2nd heart sound - correct answers.Semilunars closed 3rd heart sound - correct answers.Ventricular gallon in CHF (normal in children) 4th heart sound - correct answers.Similar to 3rd, Atrial gallop heard in diastole (normal in athletes)