Anatomy & PhysiologyPregunta 75 de 100
What happens during ventricular diastole?
a.The ventricles relax and fill with blood
b.The ventricles contract and eject blood
c.The atrioventricular valves snap shut
d.Blood is forced into the aorta and pulmonary artery
Explicación
Diastole is the relaxation and filling phase, during which the atrioventricular valves are open and blood flows from the atria into the ventricles. Contraction and ejection define systole. The atrioventricular valves close at the start of systole, and blood enters the great vessels only when the ventricles contract.
Practica las 100 preguntas gratis — sin registro.
Preguntas relacionadas de este tema
- Which valve separates the right atrium from the right ventricle?
- When does blood flow into the coronary arteries to supply the heart muscle itself?
- How is cardiac output calculated?
- A patient arrives with crushing chest pain radiating to the left jaw. The 12-lead shows ST segment elevation in leads II, III, and aVF. What does this pattern most likely represent?
- How does stable angina differ from a myocardial infarction?
- A patient scheduled for an EKG has ankle swelling, shortness of breath when lying flat, and a history of congestive heart failure. What is happening physiologically?
Última revisión: · proceso editorial
Equipo Editorial de PrepPass · Verificado con NHA Certified EKG Technician (CET) Exam · Cómo revisamos