BIO 669 CARDIAC COMPLETE QUESTIONS AND CORRECT ANSWERS | GRADED AND THE LATEST SERIES

BIO 669 CARDIAC COMPLETE QUESTIONS AND
CORRECT ANSWERS | GRADED AND THE
LATEST SERIES
The circulatory systems is made of the


Ans: blood, heart, blood vessels, lymphatic vessels


Question: heart chambers


Ans: right atrium and ventricle, left atrium and ventricle (larger)


Question: heart wall layers


Ans: epicardium (outer) myocardium (middle muscle) endocardium (inner)


Question: pumping phases


Ans: diastole (fill) systole (pump)


Question: action potential SA normal rate


Ans: 60-100


Question: what affects cardiac performance/output?


Ans: preload, afterload, contractility


Question: venules

, Ans: smallest veins, receive capillary blood


Question: Venous blood flow


Ans: venules, into larger and larger veins until it reaches venae cavae then right
atrium


Question: Vessel walls


Ans: tunica intima (inner) tunica media (middle) tunica externa (outer)


Question: blood flow affected by?


Ans: b/p, restriction or restistance w/in vessels, viscosity, anatomic defects that
cause turbulent or laminar flow, distensibility of vessels


Question: cardiac output factors


Ans: resistance and blood volume


Question: where do lymphatic vessels run


Ans: same sheaths as arteries and veins


Question: lymph drainage direction


Ans: lymphatic venules in capillary beds, lymphatic veins of larger and larger
sizes, empties into right or left thoracic duct into right or left subclavian veins


Question: varicosities?