CRAT 2 Exam questions with solution

CRAT 2



Cardiac Cycle - answermechanical events that occur to pump blood

Diastole - answerVentricles Relax (Repolarize) and refills as Atria contracts

Rapid Filling Phase - answerAtria dumping blood to ventricles; pressure causes AV
valves to open

Diastasis - answerslowing of blood flow; pressure of atria and ventricles equalize

Atrial Kick - answerAtria contracts/squeeze blood; P-wave

S1 (LAB) - answerVentricles Pressure High causes the AV valves to close

Diastole and Systole - answer2 Phases of Cardiac Cycle

Systole - answerVentricles pumps blood to body

Isovolumetric Contraction - answerVentricles squeeze but no blood flow happens yet;
SL valves are still closed

Ventricular Ejection - answerPumping vigorously of ventricles; SL valves open and
blood SHOOTs out of ventricles; half of blood empties

Protodiastole - answerPumping less; blood flow slows; pressure of ventricles, aortic and
pulmonary all equalize

Isovolumetric Relaxation - answerVentricles Relax (Repolarize)

S2 (DUB) - answerClosing of SL Valves; Ventricles low pressure, Aortic and Pulmonary
High pressure

Automaticity - answerCell's ability to create an impulse w/o stimulation

Conductivity - answerCell's ability to pass impulse to neighboring cells

Excitability - answerCells ability to respond to stimulus by depolarizing; IRRITABILITY